#include <stdio.h>
int main(void) {
int n;
switch(n){
case 1:
case 2:
case 3:
case 4:
case 5:
case 6:
case 7:
case 8:
case 9:
case 10:
break;
case 11:
break;
case 12:
break;
case 13:
break;
default:
}
return 0;
}
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