#include <bits/stdc++.h>
int main() {
  int i, y;
  int ara[32] = {1, 1, 1, 2, 1, 2, 1, 5,  2, 2, 1, 5, 1, 2, 1, 14,
                 1, 5, 1, 5, 2, 2, 1, 15, 2, 2, 5, 4, 1, 4, 1, 51};
  scanf("%d", &y);
  i = y - 1;
  printf("The %d-th element is %d.", y, ara[i]);
  return 0;
}
