diff --git a/du3/program.c b/du3/program.c
index bacba05..e8a67a7 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -44,10 +44,16 @@ int main(){
         year++;
     }
 
+    if(month < 10 && day < 10){
+        printf("_%d.0%d.%d\n", day, month, year);
+    }
     else if(month < 10){
         printf("%d.0%d.%d\n", day, month, year);
     }
+    else if(day < 10){
+        printf("_%d.%d.%d\n", day, month, year);
+    }
     else{
         printf("%d.%d.%d\n", day, month, year);
     }
-}
+}
\ No newline at end of file