diff --git a/du4/program.c b/du4/program.c
index 63b3799..6fe39c4 100644
--- a/du4/program.c
+++ b/du4/program.c
@@ -81,9 +81,11 @@ int main() {
 	//printf("%f", sr);
 		}
 		else{
+		if(check != 1){
 		printf("CHYBA\n");
 		check = 1;
 		}
+		}
 	}
      else{
 	if(symbol[p - 1] == '+'){