diff --git a/du1/program.c b/du1/program.c
index dcf97c2..47370ec 100644
--- a/du1/program.c
+++ b/du1/program.c
@@ -3,39 +3,5 @@
 
 int main()
 {
-    int pocetRiadkov = 0;
-    while (1)
-    {
-        int vstup = getchar();
-        if (vstup == EOF) {break;}
-        
-        if (vstup == '\n')
-        {
-            pocetRiadkov += 1;
-            putchar(vstup);
-        }
-        else if (vstup < 32 || vstup == 127)
-        {
-            continue;
-        }
-        else if (vstup == '\r')
-        {
-            continue;
-        }
-        else if (islower(vstup) != 0) 
-        {
-            putchar(toupper(vstup));
-        }
-        else if (isupper(vstup) != 0)
-        {
-            putchar(tolower(vstup));
-        }
-        else if (vstup >= 32 && vstup <= 126)
-        {
-            putchar(vstup);
-        }
-
-    }
-    printf("\nLines_count: %d\n", pocetRiadkov);
     return 0;
-}
+}
\ No newline at end of file