diff --git a/du4/program.c b/du4/program.c
index 44f6d2b..0910da6 100644
--- a/du4/program.c
+++ b/du4/program.c
@@ -80,9 +80,6 @@ int main() {
         }
     }
 
-    free(number1);
-    free(number2);
-    free(result);
     free(input);
 
     return 0;