#include <stdio.h>
int power(int x,int n){
if(n==0)
return 1;
else
return x*power(x,n-1);
}
int main(void) {
int x,n;
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CmludCBwb3dlcihpbnQgeCxpbnQgbil7CglpZihuPT0wKQoJcmV0dXJuIDE7CgllbHNlCglyZXR1cm4geCpwb3dlcih4LG4tMSk7Cn0KaW50IG1haW4odm9pZCkgewoJaW50IHgsbjsKCXNjYW5mKCIlZCVkIiwmeCwmbik7CglwcmludGYoIiVkIixwb3dlcih4LG4pKTsKCXJldHVybiAwOwp9Cg==