diff --git a/du3/program.c b/du3/program.c
index 731ad83..fa93ac3 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -10,15 +10,18 @@ int day=0;
 int m=0;
 int y=0;
 sscanf(str, "%d.%d.%d", &day, &m, &y);
+if(y%400==0 ||(y%100!=0 && y%4==0)){
+    z++;
+}
 if(m==2){
-    if((y%400==0 ||(y%100!=0 && y%4==0))&&day>29){
+    if(z==1 &&day>29){
     printf("Nespravny datum");
     return 0;
     }
-//    else if((y%400!=0 ||(y%100==0 && y%4!=0))&&day>28){
-//    printf("Nespravny datum");
-//    return 0;    
-//    }    
+    if(z==0 &&day>28){
+    printf("Nespravny datum");
+    return 0;    
+    }    
 }
 day+=7;
 if(m%2!=0 && day>31){