#include<iostream>
#include<cstdio>
using namespace std;
int main(){
int t;
while(1){
scanf("%d",&t);
if(t==42)
break;
printf("%d\n",t);
}
return 0;
}
I2luY2x1ZGU8aW9zdHJlYW0+CiNpbmNsdWRlPGNzdGRpbz4KdXNpbmcgbmFtZXNwYWNlIHN0ZDsKaW50IG1haW4oKXsKCWludCB0OwoJd2hpbGUoMSl7CglzY2FuZigiJWQiLCZ0KTsKCWlmKHQ9PTQyKQoJYnJlYWs7CglwcmludGYoIiVkXG4iLHQpOwoJfQoJcmV0dXJuIDA7Cn0=