#include <stdio.h>
int main(void) {
int a,b;
switch(a)
{
case 1:
if ((b>=20)&&(31>=b))
else if((b>=1)&&(19>=b))
break;
case 2:
if ((b>=19)&&(29>=b))
else if((b>=1)&&(18>=b))
break;
case 3:
if ((b>=1)&&(20>=b))
else if((b>=21)&&(31>=b))
break;
case 4:
if((b>=1)&&(19>=b))
else if((b>=20)&&(30>=b))
break;
case 5:
if((b>=1)&&(20>=b))
else if((b>=21)&&(31>=b))
break;
case 6:
if((b>=1)&&(21>=b))
else if((b>=22)&&(30>=b))
break;
case 7:
if((b>=1)&&(22>=b))
else if((b>=23)&&(31>=b))
break;
case 8:
if((b>=1)&&(22>=b))
else if((b>=23)&&(31>=b))
break;
case 9:
if((b>=1)&&(22>=b))
else if((b>=23)&&(30>=b))
break;
case 10:
if((b>=1)&&(23>=b))
else if((b>=24)&&(31>=b))
break;
case 11:
if((b>=1)&&(22>=b))
else if((b>=23)&&(30>=b))
break;
case 12:
if((b>=1)&&(21>=b))
else if((b>=22)&&(31>=b))
break;
}
return 0;
}
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