diff --git a/part_I/string_manipulation/challenges/chap6_challenge10.py b/part_I/string_manipulation/challenges/chap6_challenge10.py
index 287dc1c..4b2e186 100644
--- a/part_I/string_manipulation/challenges/chap6_challenge10.py
+++ b/part_I/string_manipulation/challenges/chap6_challenge10.py
@@ -1,3 +1,9 @@
+# static solution
 sentence = "It was a bright cold day in April, and the clocks were striking thirteen."
 slce = sentence[0:33]
 print(slce)
+
+#dynamic solution
+sentence = "It was a bright cold day in April, and the clocks were striking thirteen."
+slce = sentence[:sentence.index(",")] 
+print(slce)