diff --git a/du4/program.c b/du4/program.c
index ed295ab..0529559 100644
--- a/du4/program.c
+++ b/du4/program.c
@@ -4,6 +4,7 @@
 #include <ctype.h>
 
 char add(double A, double B, double C,char AC){
+	float CC=A+B;
     if(CC==(float)C || A+B==C)return printf("OK\n");
     return printf("ZLE\n"); 
 }