diff --git a/Algo/B2/Exercises/Repetitive tutorial.md b/Algo/B2/Exercises/Repetitive tutorial.md
index 89a384a..9dc1c46 100644
--- a/Algo/B2/Exercises/Repetitive tutorial.md	
+++ b/Algo/B2/Exercises/Repetitive tutorial.md	
@@ -44,3 +44,9 @@ def multiplication2(x: int, y: int) -> int:
             result = result + x
             i += 1
         return result
+```
+
+## Exercise 1.3
+```
+def exponentiation(x: int, n: int) -> int:
+	
\ No newline at end of file