diff --git a/.gitignore b/.gitignore
index 8a0a899..66e6eb4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,4 @@ example3/build
 *.iws
 .idea/
 out
+target
diff --git a/mastercrupt-maven/pom.xml b/mastercrupt-maven/pom.xml
new file mode 100644
index 0000000..207a0ca
--- /dev/null
+++ b/mastercrupt-maven/pom.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>mastercrupt</groupId>
+    <artifactId>kata</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>${maven.compiler.source}</maven.compiler.target>
+        <junit.jupiter.version>5.4.2</junit.jupiter.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>${junit.jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.0</version>
+            </plugin>
+        </plugins>
+    </build>
+</project>
+
diff --git a/mastercrupt-maven/src/main/java/mastercrupt/Application.java b/mastercrupt-maven/src/main/java/mastercrupt/Application.java
new file mode 100755
index 0000000..c27752c
--- /dev/null
+++ b/mastercrupt-maven/src/main/java/mastercrupt/Application.java
@@ -0,0 +1,11 @@
+package mastercrupt;
+
+public class Application {
+    public void leet(String string, UI ui) {
+        ui.setLeeted(Leeter.leet(string));
+    }
+    public static void main(String[] args) {
+        UI ui = new UI();
+        System.out.println(ui.leetMessage(args[0]));
+    }
+}
\ No newline at end of file
diff --git a/mastercrupt-maven/src/main/java/mastercrupt/Leeter.java b/mastercrupt-maven/src/main/java/mastercrupt/Leeter.java
new file mode 100644
index 0000000..0106c8e
--- /dev/null
+++ b/mastercrupt-maven/src/main/java/mastercrupt/Leeter.java
@@ -0,0 +1,7 @@
+package mastercrupt;
+
+public class Leeter {
+	public static String leet(String message) { 
+		return message.replace('e', '3');
+	}
+}
diff --git a/mastercrupt-maven/src/main/java/mastercrupt/UI.java b/mastercrupt-maven/src/main/java/mastercrupt/UI.java
new file mode 100755
index 0000000..afd919e
--- /dev/null
+++ b/mastercrupt-maven/src/main/java/mastercrupt/UI.java
@@ -0,0 +1,15 @@
+package mastercrupt;
+
+public class UI {
+    private Application application = new Application();
+    private String leeted;
+    
+    public String leetMessage(String unLeeted) {
+        application.leet(unLeeted, this);
+        return "Leeted: " + leeted;
+    }
+
+    public void setLeeted(String leeted) {
+        this.leeted = leeted;
+    }
+}
\ No newline at end of file
diff --git a/mastercrupt-maven/src/test/java/mastercrupt/AcceptanceTest.java b/mastercrupt-maven/src/test/java/mastercrupt/AcceptanceTest.java
new file mode 100755
index 0000000..522f247
--- /dev/null
+++ b/mastercrupt-maven/src/test/java/mastercrupt/AcceptanceTest.java
@@ -0,0 +1,12 @@
+package mastercrupt;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+public class AcceptanceTest {
+    @Test
+    public void testLeeting() {
+        UI ui = new UI();
+        assertEquals("Leeted: S3cr3t", ui.leetMessage("Secret"));
+    }
+}