diff --git a/Program2.1/main.c b/Program2.1/main.c
index b085ffb..3cbd1d3 100644
--- a/Program2.1/main.c
+++ b/Program2.1/main.c
@@ -4,5 +4,7 @@
 int main()
 {
     printf("Hello world! P2.1\n");
+
+    printf("Hello world! P2.1 v2\n");
     return 0;
 }