diff --git a/du1/program.c b/du1/program.c
deleted file mode 100644
index 68631d7..0000000
--- a/du1/program.c
+++ /dev/null
@@ -1,29 +0,0 @@
-#include <stdio.h>
-
-
-
-int main(){
-    int c= 0;
-    int n=0; // pocet nacitanych znakov
-    while(1){
-        c = getchar();
-
-        if(c!=-1){ //-1 eof koniec vstupu
-        if( c >= 'a' && c <= 'z'){ //porovnavam cisla v ascii tabulke
-            c=c+'A'-'a';        //velke pismeno na male 
-        }
-        else if(c >= 'A' && c <= 'Z'){
-            c=c-'A'+'a';        //male pismeno na velke
-        }
-        }
-        else{
-            break;
-            }
-        n++;
-        putchar(c);
-
-
-}
-printf("%d\n", n); //vypise pocet zpouzitych znakov
-return 0;
-}
\ No newline at end of file