diff --git a/2023/homework/Tengfei_Li/hello world.md b/2023/homework/Tengfei_Li/hello world.md
new file mode 100644
index 00000000..9a71f81a
--- /dev/null
+++ b/2023/homework/Tengfei_Li/hello world.md	
@@ -0,0 +1,2 @@
+hello world
+
diff --git a/2023/homework/Tengfei_Li/numpy_submit.txt b/2023/homework/Tengfei_Li/numpy_submit.txt
new file mode 100644
index 00000000..c557c51f
--- /dev/null
+++ b/2023/homework/Tengfei_Li/numpy_submit.txt
@@ -0,0 +1,10 @@
+C
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diff --git a/2023/homework/Tengfei_Li/pandas_submit.txt b/2023/homework/Tengfei_Li/pandas_submit.txt
new file mode 100644
index 00000000..06b3cb18
--- /dev/null
+++ b/2023/homework/Tengfei_Li/pandas_submit.txt
@@ -0,0 +1,12 @@
+A
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diff --git a/2023/homework/Tengfei_Li/python_submit.txt b/2023/homework/Tengfei_Li/python_submit.txt
new file mode 100644
index 00000000..1567ebde
--- /dev/null
+++ b/2023/homework/Tengfei_Li/python_submit.txt
@@ -0,0 +1,108 @@
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