add example

Author: zehengl

src/brentering.py

@@ -0,0 +1,7 @@
+w = input()
+i = -1
+while True:
+    if w[i] in "aeiou":
+        break
+    i -= 1
+print(w[: len(w) if i == -1 else i + 1] + "ntry")