diff --git a/diy4.py b/diy4.py
new file mode 100644
index 0000000..3a90a0c
--- /dev/null
+++ b/diy4.py
@@ -0,0 +1,7 @@
+import random
+s = "abcde"
+a = list(s)
+p = random.randint(0,len(s))
+a.insert(p,"x")
+res = "".join(a)
+print(res)
\ No newline at end of file