// School of Computer Engineering
// K.N. Toosi University of Technology

#include <stdio.h>

int pow(int,int);

int main() {

  printf("%d\n", pow(2,8));
  
  return  0;
}

int pow(int a, int b) {
  int p = 1;
  while (b > 0) {
    p *= a;
    b--;
  }

  return p;
}