diff --git a/cv3/program.c b/cv3/program.c
index be23bd5..ae787e0 100644
--- a/cv3/program.c
+++ b/cv3/program.c
@@ -56,7 +56,8 @@ int main() {
         }
         else {
             if(line[0] >= 'a' && line[0] <= 'z') {
-                printf("bad input");
+                printf("bad input\n");
+                vys = 1;
                 break;
             }
             else {