diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..f8ff2b5
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diff --git a/Codes/Tutorials/Tutorial-4.mp4 b/Codes/Tutorials/Tutorial-4.mp4
new file mode 100644
index 0000000..f5a49b3
--- /dev/null
+++ b/Codes/Tutorials/Tutorial-4.mp4
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