#include <stdio.h>

int main() {
 unsigned int m, n;
 while (scanf("%u", &m) != EOF) {
  unsigned int o = 0, p = 0, q = 0, r = 0;
  o = m ^ (m << 1);
  p = o ^ (o << 2);
  q = p ^ (p << 4);
  r = q ^ (q << 8);
  n = r ^ (r << 16);
  printf("%u\n", n);
 }
 return 0;
}