diff --git a/du3/program.c b/du3/program.c
index 802291e..ede02c8 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -5,6 +5,8 @@ int main(){
 	int vxod[999];
 	for(int i = 0; i < 2; i++){
 		scanf("%d", &c);
+		if(c == 4)
+			break;
 		vxod[i] = c;
 	}
 	if(c == 4)