#include <stdio.h>
int main (){
int a,b;
switch(a){
case 1:
if((20<=b)&&(b<=31))
else if((1<=b)&&(b<=19))
case 2:
if((1<=b&&b<=18))
else if((19<=b)&&(b<=28))
case 3:
if ((1<=b&&b<=20))
else if((21<=b)&&(b<=31))
case 4:
if ((20<=b)&&(b<=31))
else if((1<=b)&&(b<=20))
case 5:
if ((21<=b)&&(b<=30))
else if((1<=b)&&(b<=21))
case 6:
if ((1<=b)&&(b<=21))
else if((21<=b)&&(b<=31))
case 7:
if ((1<=b)&&(b<=22))
else if((23<=b)&&(b<=31))
case 8:
if ((1<=b)&&(b<=22))
else if((23<=b)&&(b<=31))
case 9:
if ((1<=b)&&(b<=22))
else if((23<=b)&&(b<=31))
case 10:
if ((1<=b)&&(b<=23))
else if((24<=b)&&(b<=31))
case 11:
if ((1<=b)&&(b<=22))
else if((23<=b)&&(b<=31))
case 12:
if ((1<=b)&&(b<=21))
else if((22<=b)&&(b<=31))
return 0;
}}
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