diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000000000000000000000000000000000000..94a25f7f4cb416c083d265558da75d457237d671
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/PE1 86.zip b/PE1 86.zip
new file mode 100644
index 0000000000000000000000000000000000000000..3ddc2e75493f2e0cb890a9f33007d7e6904a2d7a
Binary files /dev/null and b/PE1 86.zip differ
diff --git a/Practical exercise 1.pdf b/Practical exercise 1.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..154ed59745bffa0c21c5474cb3671267c93ecb53
Binary files /dev/null and b/Practical exercise 1.pdf differ