diff --git a/src/week1/day0/css/gallery.css b/src/week1/day0/css/gallery.css
new file mode 100644
index 0000000..94462e2
--- /dev/null
+++ b/src/week1/day0/css/gallery.css
@@ -0,0 +1,86 @@
+/* Small screens (default) */
+html { 
+    font-size: 100%; 
+    font-family: Verdana, Geneva, Tahoma, sans-serif;
+}
+
+/* Medium screens (640px) */
+@media (min-width: 40rem) { 
+  html { font-size: 112%; }
+}
+
+/* Large screens (1024px) */
+@media (min-width: 64rem) { 
+  html { font-size: 120%; }
+}
+
+@media (max-width: 350px) {
+    .container > h1 {
+        font-size: 3rem;
+    }
+}
+
+*, *:before, *:after {
+    -moz-box-sizing: border-box;
+    -webkit-box-sizing: border-box;
+    box-sizing: border-box;
+}
+
+.container {
+    margin: 0 auto;
+    max-width: 48rem;
+    width: 90%;
+  }
+
+.wrapper {
+    display: flex;
+    flex-direction: row;
+    flex-wrap: wrap;
+}
+
+h1 {
+    text-align: center;
+    font-weight: bolder;
+    font-size: 4rem;
+}
+
+.box {   
+    height: 15rem;
+    width: 15rem;
+    margin: 10px auto 10px auto;
+    border: #000000 2px solid;
+}
+
+img {
+    width: 100%;
+    height: inherit;
+    padding: 5px;
+}
+
+.title {
+    background-color: rgba(128, 128, 128, 0.7);
+    position: relative;
+    left:0;
+    top:-102.5%;
+    margin:0;
+    width: 100%;
+    height: 35%;
+    opacity: 0;
+    transition: all 0.6s ease-in-out;
+}
+
+.box:hover > .title {
+    opacity: 1;
+}
+
+p {
+    font-size: 2rem;
+    font-weight: bold;
+    color: #FFFFFF;
+    text-align: center;
+}
+
+p > span {
+    font-size: 1rem;
+    font-weight: 100;
+}
diff --git a/src/week1/day0/css/normalize.css b/src/week1/day0/css/normalize.css
new file mode 100644
index 0000000..35a663c
--- /dev/null
+++ b/src/week1/day0/css/normalize.css
@@ -0,0 +1,342 @@
+/*! normalize.css v8.0.0 | MIT License | github.com/necolas/normalize.css */
+
+/* Document
+   ========================================================================== */
+
+/**
+ * 1. Correct the line height in all browsers.
+ * 2. Prevent adjustments of font size after orientation changes in iOS.
+ */
+
+ html {
+	line-height: 1.15; /* 1 */
+	-webkit-text-size-adjust: 100%; /* 2 */
+  }
+  
+  /* Sections
+	 ========================================================================== */
+  
+  /**
+   * Remove the margin in all browsers.
+   */
+  
+  body {
+	margin: 0;
+  }
+  
+  /**
+   * Correct the font size and margin on `h1` elements within `section` and
+   * `article` contexts in Chrome, Firefox, and Safari.
+   */
+  
+  h1 {
+	font-size: 2em;
+	margin: 0.67em 0;
+  }
+  
+  /* Grouping content
+	 ========================================================================== */
+  
+  /**
+   * 1. Add the correct box sizing in Firefox.
+   * 2. Show the overflow in Edge and IE.
+   */
+  
+  hr {
+	box-sizing: content-box; /* 1 */
+	height: 0; /* 1 */
+	overflow: visible; /* 2 */
+  }
+  
+  /**
+   * 1. Correct the inheritance and scaling of font size in all browsers.
+   * 2. Correct the odd `em` font sizing in all browsers.
+   */
+  
+  pre {
+	font-family: monospace, monospace; /* 1 */
+	font-size: 1em; /* 2 */
+  }
+  
+  /* Text-level semantics
+	 ========================================================================== */
+  
+  /**
+   * Remove the gray background on active links in IE 10.
+   */
+  
+  a {
+	background-color: transparent;
+  }
+  
+  /**
+   * 1. Remove the bottom border in Chrome 57-
+   * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
+   */
+  
+  abbr[title] {
+	border-bottom: none; /* 1 */
+	text-decoration: underline; /* 2 */
+	text-decoration: underline dotted; /* 2 */
+  }
+  
+  /**
+   * Add the correct font weight in Chrome, Edge, and Safari.
+   */
+  
+  b,
+  strong {
+	font-weight: bolder;
+  }
+  
+  /**
+   * 1. Correct the inheritance and scaling of font size in all browsers.
+   * 2. Correct the odd `em` font sizing in all browsers.
+   */
+  
+  code,
+  kbd,
+  samp {
+	font-family: monospace, monospace; /* 1 */
+	font-size: 1em; /* 2 */
+  }
+  
+  /**
+   * Add the correct font size in all browsers.
+   */
+  
+  small {
+	font-size: 80%;
+  }
+  
+  /**
+   * Prevent `sub` and `sup` elements from affecting the line height in
+   * all browsers.
+   */
+  
+  sub,
+  sup {
+	font-size: 75%;
+	line-height: 0;
+	position: relative;
+	vertical-align: baseline;
+  }
+  
+  sub {
+	bottom: -0.25em;
+  }
+  
+  sup {
+	top: -0.5em;
+  }
+  
+  /* Embedded content
+	 ========================================================================== */
+  
+  /**
+   * Remove the border on images inside links in IE 10.
+   */
+  
+  img {
+	border-style: none;
+  }
+  
+  /* Forms
+	 ========================================================================== */
+  
+  /**
+   * 1. Change the font styles in all browsers.
+   * 2. Remove the margin in Firefox and Safari.
+   */
+  
+  button,
+  input,
+  optgroup,
+  select,
+  textarea {
+	font-family: inherit; /* 1 */
+	font-size: 100%; /* 1 */
+	line-height: 1.15; /* 1 */
+	margin: 0; /* 2 */
+  }
+  
+  /**
+   * Show the overflow in IE.
+   * 1. Show the overflow in Edge.
+   */
+  
+  button,
+  input { /* 1 */
+	overflow: visible;
+  }
+  
+  /**
+   * Remove the inheritance of text transform in Edge, Firefox, and IE.
+   * 1. Remove the inheritance of text transform in Firefox.
+   */
+  
+  button,
+  select { /* 1 */
+	text-transform: none;
+  }
+  
+  /**
+   * Correct the inability to style clickable types in iOS and Safari.
+   */
+  
+  button,
+  [type="button"],
+  [type="reset"],
+  [type="submit"] {
+	-webkit-appearance: button;
+  }
+  
+  /**
+   * Remove the inner border and padding in Firefox.
+   */
+  
+  button::-moz-focus-inner,
+  [type="button"]::-moz-focus-inner,
+  [type="reset"]::-moz-focus-inner,
+  [type="submit"]::-moz-focus-inner {
+	border-style: none;
+	padding: 0;
+  }
+  
+  /**
+   * Restore the focus styles unset by the previous rule.
+   */
+  
+  button:-moz-focusring,
+  [type="button"]:-moz-focusring,
+  [type="reset"]:-moz-focusring,
+  [type="submit"]:-moz-focusring {
+	outline: 1px dotted ButtonText;
+  }
+  
+  /**
+   * Correct the padding in Firefox.
+   */
+  
+  fieldset {
+	padding: 0.35em 0.75em 0.625em;
+  }
+  
+  /**
+   * 1. Correct the text wrapping in Edge and IE.
+   * 2. Correct the color inheritance from `fieldset` elements in IE.
+   * 3. Remove the padding so developers are not caught out when they zero out
+   *    `fieldset` elements in all browsers.
+   */
+  
+  legend {
+	box-sizing: border-box; /* 1 */
+	color: inherit; /* 2 */
+	display: table; /* 1 */
+	max-width: 100%; /* 1 */
+	padding: 0; /* 3 */
+	white-space: normal; /* 1 */
+  }
+  
+  /**
+   * Add the correct vertical alignment in Chrome, Firefox, and Opera.
+   */
+  
+  progress {
+	vertical-align: baseline;
+  }
+  
+  /**
+   * Remove the default vertical scrollbar in IE 10+.
+   */
+  
+  textarea {
+	overflow: auto;
+  }
+  
+  /**
+   * 1. Add the correct box sizing in IE 10.
+   * 2. Remove the padding in IE 10.
+   */
+  
+  [type="checkbox"],
+  [type="radio"] {
+	box-sizing: border-box; /* 1 */
+	padding: 0; /* 2 */
+  }
+  
+  /**
+   * Correct the cursor style of increment and decrement buttons in Chrome.
+   */
+  
+  [type="number"]::-webkit-inner-spin-button,
+  [type="number"]::-webkit-outer-spin-button {
+	height: auto;
+  }
+  
+  /**
+   * 1. Correct the odd appearance in Chrome and Safari.
+   * 2. Correct the outline style in Safari.
+   */
+  
+  [type="search"] {
+	-webkit-appearance: textfield; /* 1 */
+	outline-offset: -2px; /* 2 */
+  }
+  
+  /**
+   * Remove the inner padding in Chrome and Safari on macOS.
+   */
+  
+  [type="search"]::-webkit-search-decoration {
+	-webkit-appearance: none;
+  }
+  
+  /**
+   * 1. Correct the inability to style clickable types in iOS and Safari.
+   * 2. Change font properties to `inherit` in Safari.
+   */
+  
+  ::-webkit-file-upload-button {
+	-webkit-appearance: button; /* 1 */
+	font: inherit; /* 2 */
+  }
+  
+  /* Interactive
+	 ========================================================================== */
+  
+  /*
+   * Add the correct display in Edge, IE 10+, and Firefox.
+   */
+  
+  details {
+	display: block;
+  }
+  
+  /*
+   * Add the correct display in all browsers.
+   */
+  
+  summary {
+	display: list-item;
+  }
+  
+  /* Misc
+	 ========================================================================== */
+  
+  /**
+   * Add the correct display in IE 10+.
+   */
+  
+  template {
+	display: none;
+  }
+  
+  /**
+   * Add the correct display in IE 10.
+   */
+  
+  [hidden] {
+	display: none;
+  }
+  
\ No newline at end of file
diff --git a/src/week1/day0/css/style.css b/src/week1/day0/css/style.css
new file mode 100644
index 0000000..5d9f075
--- /dev/null
+++ b/src/week1/day0/css/style.css
@@ -0,0 +1,91 @@
+html {
+    font-family: Verdana, Geneva, Tahoma, sans-serif;
+    font-size: 14px;
+}
+
+header, 
+nav, 
+section, 
+article, 
+aside, 
+footer {
+    border-radius: 15px;
+    margin: 5px;
+}
+
+header {
+    background-color: #FF0000;
+    text-align: center;
+    height: 5em;
+}
+
+.main {
+    display: flex;
+    height: auto;
+    flex-direction: row;
+    align-items: stretch;
+}
+
+nav {
+    background-color: #008000;
+    width: 25%;
+}
+
+section {
+    background-color: #808080;
+    width: 50%;
+}
+
+section > header {
+    background-color: #FFC0CB;
+    height: 3em;
+}
+
+section > article {
+    background-color: #FFE4C4;
+    height: 15em;
+}
+
+section > footer {
+    background-color: #00FFFF;
+    height: 3em;
+}
+
+aside {
+    background-color:#FFA500;
+    width: 25%;
+}
+
+footer {
+    background-color: #0000FF;
+    text-align: center;
+    height: 5em;
+}
+
+.header {
+    font-size: 46px;
+}
+
+.navigation {
+    font-size: 12px;
+}
+
+.sidebar {
+    font-size: 10px;
+}
+
+.footer {
+    font-size: 10px;
+}
+
+.content > * {
+    font-size: 14px;
+}
+
+[class$="r"] {
+    background-color: #FF00FF;
+}
+
+[class*="a"]:not([class$="r"]) {
+    background-color: #0000FF;
+}
\ No newline at end of file
diff --git a/src/week1/day0/expenses.html b/src/week1/day0/expenses.html
new file mode 100644
index 0000000..45db88f
--- /dev/null
+++ b/src/week1/day0/expenses.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html lang="en">
+    <head>
+        <meta charset="utf-8" />
+        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+        <title>Expenses Table</title>
+    </head>
+    <body>
+        <section>
+            <h2>Expenses Table</h2>
+            <table>
+                <tr>
+                    <th>Expenses</th>
+                    <th>Cost</th>
+                </tr>
+                <tr>
+                    <td>Expense 1</td>
+                    <td>$800</td>
+                </tr>
+                <tr>
+                    <td>Expense 2</td>
+                    <td>$1000</td>
+                </tr>
+                <tr>
+                    <td>Expense 3</td>
+                    <td>$500</td>
+                </tr>
+            </table>
+        </section>
+    </body>
+</html>
\ No newline at end of file
diff --git a/src/week1/day0/gallery.html b/src/week1/day0/gallery.html
new file mode 100644
index 0000000..8c93db8
--- /dev/null
+++ b/src/week1/day0/gallery.html
@@ -0,0 +1,63 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <title>Gallery</title>
+    <link rel="stylesheet" href="./css/normalize.css">
+    <link rel="stylesheet" href="./css/gallery.css">
+</head>
+
+<body>
+    <section class="container">
+        <h1>Laptops</h1>
+        <div class="wrapper">
+            <div class="box">
+                <img src="./images/asus.jpg" alt="Asus Laptop Image">
+                <p class="title">
+                    Asus <br>
+                    <span>www.asus.com</span>
+                </p>
+            </div>
+            <div class="box">
+                <img src="./images/dell.jpg" alt="Dell Laptop Image">
+                <p class="title">
+                    Dell <br>
+                    <span>www.dell.com</span>
+                </p>
+            </div>
+            <div class="box">
+                <img src="./images/hp.jpg" alt="HP Laptop Image">
+                <p class="title">
+                    HP <br>
+                    <span>www.hp.com</span>
+                </p>
+            </div>
+            <div class="box">
+                <img src="./images/macbook.jpg" alt="Macbook Image">
+                <p class="title">
+                    Macbook <br>
+                    <span>www.apple.com</span>
+                </p>
+            </div>
+            <div class="box">
+                <img src="./images/exo.jpg" alt="Exo Laptop Image">
+                <p class="title">
+                    Exo <br>
+                    <span>www.exo.com</span>
+                </p>
+            </div>
+            <div class="box">
+                <img src="./images/samsung.jpg" alt="Samsung Laptop Image">
+                <p class="title">
+                    Samsung <br>
+                    <span>www.samsung.com</span>
+                </p>
+            </div>
+        </div>
+    </section>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/src/week1/day0/image-video-audio.html b/src/week1/day0/image-video-audio.html
new file mode 100644
index 0000000..69dc9bb
--- /dev/null
+++ b/src/week1/day0/image-video-audio.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html lang="en">
+    <head>
+        <meta charset="utf-8" />
+        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+        <title>Image, Video & Audio</title>
+    </head>
+    <body>
+        <section>
+            <h1>Image</h1>
+            <img src="./images/html-css.png" alt="HTML5 and CSS3 Logos">
+            <h1>Video</h1>
+            <video width="320" height="240" controls>
+                <source src="./images/globant.mp4" type="video/mp4">
+                Your browser does not support the video tag.
+            </video>
+            <h1>Audio</h1>
+            <audio controls>
+                <source src="./images/globant_audio.mp3" type="audio/mp3">
+                Your browser does not support the audio element.
+            </audio>
+        </section>
+    </body>
+</html>
\ No newline at end of file
diff --git a/src/week1/day0/images/asus.jpg b/src/week1/day0/images/asus.jpg
new file mode 100644
index 0000000..58f7061
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diff --git a/src/week1/day0/images/dell.jpg b/src/week1/day0/images/dell.jpg
new file mode 100644
index 0000000..8470b30
Binary files /dev/null and b/src/week1/day0/images/dell.jpg differ
diff --git a/src/week1/day0/images/exo.jpg b/src/week1/day0/images/exo.jpg
new file mode 100644
index 0000000..4b03c8b
Binary files /dev/null and b/src/week1/day0/images/exo.jpg differ
diff --git a/src/week1/day0/images/globant.mp4 b/src/week1/day0/images/globant.mp4
new file mode 100644
index 0000000..2de623c
Binary files /dev/null and b/src/week1/day0/images/globant.mp4 differ
diff --git a/src/week1/day0/images/globant_audio.mp3 b/src/week1/day0/images/globant_audio.mp3
new file mode 100644
index 0000000..2feed1e
Binary files /dev/null and b/src/week1/day0/images/globant_audio.mp3 differ
diff --git a/src/week1/day0/images/hp.jpg b/src/week1/day0/images/hp.jpg
new file mode 100644
index 0000000..8e925ed
Binary files /dev/null and b/src/week1/day0/images/hp.jpg differ
diff --git a/src/week1/day0/images/html-css.png b/src/week1/day0/images/html-css.png
new file mode 100644
index 0000000..cc8a11f
Binary files /dev/null and b/src/week1/day0/images/html-css.png differ
diff --git a/src/week1/day0/images/macbook.jpg b/src/week1/day0/images/macbook.jpg
new file mode 100644
index 0000000..3c92581
Binary files /dev/null and b/src/week1/day0/images/macbook.jpg differ
diff --git a/src/week1/day0/images/samsung.jpg b/src/week1/day0/images/samsung.jpg
new file mode 100644
index 0000000..e631efe
Binary files /dev/null and b/src/week1/day0/images/samsung.jpg differ
diff --git a/src/week1/day0/index.html b/src/week1/day0/index.html
new file mode 100644
index 0000000..0a0c54a
--- /dev/null
+++ b/src/week1/day0/index.html
@@ -0,0 +1,42 @@
+<!doctype html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <title>Index</title>
+    <link rel="stylesheet" href="./css/normalize.css">
+    <link rel="stylesheet" href="./css/style.css">
+</head>
+
+<body>
+    <header class="header">
+        header
+    </header>
+    <div class="main">
+        <nav class="navigation">
+            nav
+        </nav>
+        <section class="content">
+            section
+            <header class="header">
+                section - header
+            </header>
+            <article>
+                section - article
+            </article>
+            <footer class="footer">
+                section - footer
+            </footer>
+        </section>
+        <aside class="sidebar">
+            aside
+        </aside>
+    </div>
+    <footer class="footer">
+        footer
+    </footer>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/src/week1/day0/my-todo-list.html b/src/week1/day0/my-todo-list.html
new file mode 100644
index 0000000..160b529
--- /dev/null
+++ b/src/week1/day0/my-todo-list.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html lang="en">
+    <head>
+        <meta charset="utf-8" />
+        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+        <title>Todo List</title>
+    </head>
+    <body>
+        <section>
+            <h1>My todo List</h1>
+            <ul class="todo-list">
+                <li class="todo-item">Sleep</li>
+                <li class="todo-item">Eat</li>
+                <li class="todo-item">Study</li>
+                <li class="todo-item">Workout</li>
+            </ul>
+        </section>
+    </body>
+</html>
\ No newline at end of file
diff --git a/src/week1/day0/sign-up-form.html b/src/week1/day0/sign-up-form.html
new file mode 100644
index 0000000..b6ac2b8
--- /dev/null
+++ b/src/week1/day0/sign-up-form.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+    <head>
+        <meta charset="utf-8" />
+        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+        <title>Sign Up Form</title>
+    </head>
+    <body>
+        <section>
+            <h1>Sign Up</h1>
+            <form>
+                <span>First name:</span>
+                <input type="text" name="firstname" value="" required>
+                <br><br>
+                <span>Last name:</span>
+                <input type="text" name="lastname" value="" required>
+                <br><br>
+                <span>Email:</span>
+                <input type="email" name="email" value="" required>
+                <br><br>
+                <span>Birthday:</span>
+                <input type="date" name="birthday" required>
+                <br><br>
+                <span>Favourite Sport:</span>
+                <select name="sport" required>
+                    <option value="">Select..</option>
+                    <option value="Soccer">Soccer</option>
+                    <option value="Basketball">Basketball</option>
+                    <option value="Baseball">Baseball</option>
+                    <option value="Football">Football</option>
+                    <option value="Other">Other</option>
+                </select> 
+                <br><br>
+                Bio: <br>
+                <textarea name="bio" rows="10" cols="30"></textarea>
+                <br>
+                <br>
+                <button type="reset">Clear All</button>
+                <button type="submit">Submit</button>
+            </form>
+        </section>
+    </body>
+</html>
\ No newline at end of file
diff --git a/src/week1/days2-5/data-structures.js b/src/week1/days2-5/data-structures.js
new file mode 100644
index 0000000..d5f1d64
--- /dev/null
+++ b/src/week1/days2-5/data-structures.js
@@ -0,0 +1,124 @@
+// Exercise "The sum of a range"
+function range(start, end, step = start < end ? 1 : -1) {
+    var result = [];
+
+    if (step > 0) {
+        for(var i = start; i <= end; i += step) {
+            result.push(i);
+        }
+    } else {
+        for(var j = start; j >= end; j += step) {
+            result.push(j);
+        }
+    }
+
+    return result;
+}
+
+function sum(numbers) {
+    var total = 0;
+    for (value of numbers) {
+        total += value;
+    }
+    return total;
+}
+
+// Exercise "Reversing an array"
+
+function reverseArray(array) {
+    var newArray = [];
+    for (var i = array.length - 1; i >= 0; i--) {
+        newArray.push(array[i]);
+    }
+    return newArray;
+}
+
+function reverseArrayInPlace(array) { 
+    var middle = Math.floor(array.length / 2);
+    for (var i = 0; i < middle; i++) {
+        var rightPosition = array.length - 1 - i;
+        var rightValue = array[rightPosition];
+        array[rightPosition] = array[i];
+        array[i] = rightValue;
+    }
+    return array;
+}
+
+// Exercise "A List"
+
+function arrayToList(array) {
+    var list = null;
+    for (var i = array.length - 1; i >= 0; i--) {
+        list = {
+            value: array[i],
+            rest: list
+        }
+    }
+    return list;
+}
+
+function listToArray(list) {
+    var array = [];
+    while (list != null) {
+        array.push(list.value);
+        list = list.rest;
+    }
+    return array;
+}
+
+function prepend(element, list) {
+    return {
+        value: element,
+        rest: list
+    }
+}
+
+function nth(list, number) {
+    var position = 0;
+    while (list != null) {
+        if (number == position) {
+            return list.value;
+        } else {
+            list = list.rest;
+            position++;
+        }
+    }
+}
+
+function nthRecursive(list, number) {
+    if (list != null) {
+        if (number == 0) {
+            return list.value;
+        } else {
+            return nthRecursive(list.rest, number - 1);
+        }
+    } 
+}
+
+// Exercise "Deep Comparison"
+
+function deepEqual(value1, value2) {
+    if (value1 === value2)
+        return true;
+
+    var object1 = typeof value1 == "object" && value1 != null;
+    var object2 = typeof value2 == "object" && value2 != null;
+
+    if (object1 && object2) {
+        var keys1 = Object.keys(value1);
+        var keys2 = Object.keys(value2);
+        
+        if (keys1.length == keys2.length) {
+            for (let key of keys1) {
+                if (!keys2.includes(key) || !deepEqual(value1[key], value2[key])){
+                    return false;
+                }
+            }
+            return true;
+        } else {
+            return false;
+        }
+    } else {
+        return false;
+    }
+}
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diff --git a/src/week1/days2-5/functions.js b/src/week1/days2-5/functions.js
new file mode 100644
index 0000000..aa31e8b
--- /dev/null
+++ b/src/week1/days2-5/functions.js
@@ -0,0 +1,59 @@
+// Exercise "Minimum"
+
+function min(value1, value2) {
+    var isNumber1 = typeof value1 == "number";
+    var isNumber2 = typeof value2 == "number";
+
+    if (isNumber1 && isNumber2) {
+        return (value1 < value2) ? value1 : value2;
+    } else {
+        console.log("Please, enter two numbers.");
+    }
+}
+
+// Exercise "Recursion"
+
+function isEven(number) {
+    var isNumber = typeof number == "number";
+
+    if (isNumber) {
+        if (number >= 0) {
+            if (number === 0)
+                return true;
+            else
+                if (number === 1)
+                    return false;
+                else
+                    return isEven(number - 2);
+        } else
+            return isEven(-number);
+    } else {
+        console.log("Please, enter a number.")
+    }
+}
+
+// Exercise "Bean Counting"
+
+function countBs(string) {
+    return countChar(string, "B");
+}
+
+function countChar(string, char) {
+    var isString = typeof string == "string";
+    var isChar = typeof char == "string" && char.length == 1;
+
+    if (isString) {
+        if (isChar) {
+            let counter = 0;
+            for (let i = 0; i < string.length; i++) {
+                if (string[i] === char)
+                    counter++;
+            }
+            return counter;
+        } else {
+            console.log("Please, enter a char.")
+        }
+    } else {
+        console.log("Please, enter a string.")
+    }
+}
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diff --git a/src/week1/days2-5/program-structure.js b/src/week1/days2-5/program-structure.js
new file mode 100644
index 0000000..6c3641b
--- /dev/null
+++ b/src/week1/days2-5/program-structure.js
@@ -0,0 +1,44 @@
+// Exercise "Looping a Triangle"
+
+function loopingTriangle() {
+    for (let hashtag = "#"; hashtag.length <= 7; hashtag += "#") {
+        console.log(hashtag);
+    }
+}
+
+// Exercise "FizzBuzz"
+
+function fizzBuzz() {
+    for (let counter = 1; counter <= 100; counter++) {
+        if (counter % 3 == 0 && counter % 5 == 0){
+            console.log("FizzBuzz");
+        } else {
+            if (counter % 3 == 0) {
+                console.log("Fizz");
+            } else {
+                if (counter % 5 == 0) {
+                    console.log("Buzz");
+                } else {
+                    console.log(counter);
+                }
+            }
+        }
+    }
+}
+
+// Exercise "Chessboard"
+
+function chessboard() {
+    const size = 8;
+    for (let x = 0; x < size; x++) {
+        let output = "";
+        for (let y = 0; y < size; y++) {
+            if ((x + y) % 2 == 0) {
+                output += " ";
+            } else {
+                output += "#";
+            }
+        }
+        console.log(output + "\n");
+    }
+}
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