diff --git a/du3/program.c b/du3/program.c
index aa01108..1619db2 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -14,14 +14,14 @@ int je_cislo(const char *u) {
 
 int main() {
     char riadok[MAX];
-    double cislo1, cislo2, vysledok, skutocny_vysledok;
+    float cislo1, cislo2, vysledok, skutocny_vysledok;
     char operacia;
 
     while (fgets(riadok, MAX, stdin) != NULL) {
         if (strlen(riadok) <= 1){
 	       	break; 
    	}
-        if (sscanf(riadok, " %f %c %f = %lf", &cislo1, &operacia, &cislo2, &vysledok) != 4) {
+        if (sscanf(riadok, " %f %c %f = %f", &cislo1, &operacia, &cislo2, &vysledok) != 4) {
             printf("CHYBA\n");
             continue;
         }