#include <stdio.h>
int main(void) {
int a,b;
switch(a) {
case 1:
if(b <= 19)
else
break;
case 2:
if(b <= 18)
else
break;
case 3:
if(b <= 20)
else
break;
case 4:
if(b <= 19)
else
break;
case 5:
if(b <= 20)
else
break;
case 6:
if(b <= 21)
else
break;
case 7:
if(b <= 22)
else
break;
case 8:
if(b <= 22)
else
break;
case 9:
if(b <= 22)
else
break;
case 10:
if(b <= 23)
else
break;
case 11:
if(b <= 22)
else
break;
case 12:
if(b <= 21)
else
break;
default:
}
return 0;
}
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