#include <stdio.h>
int power(int x,int n){
if(n==0||x==1){
return 1;
}
else{
return x*power(x,n-1);
}
}
int main(void){
int x,n;
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CgppbnQgcG93ZXIoaW50IHgsaW50IG4pewoJaWYobj09MHx8eD09MSl7CgkJcmV0dXJuIDE7Cgl9CgllbHNlewoJCXJldHVybiB4KnBvd2VyKHgsbi0xKTsKCX0KfQoKaW50IG1haW4odm9pZCl7CglpbnQgeCxuOwoJc2NhbmYoIiVkICVkIiwmeCwmbik7CglwcmludGYoIiVkIixwb3dlcih4LG4pKTsKCXJldHVybiAwOwp9Cg==