Problem: 

Input

The input contains a single integer a (0 ≤ a ≤ 35).

Output

Output a single integer.

Examples

Input

3


Output

8


Input

10


Output

1024

Solution (in CPP):

Solution:
#include <bits/stdc++.h>
int main() {
  int n;
  scanf("%d", &n);
  long long b[50];
  b[0] = 1;
  for (int i = 1; i <= n; i++) {
    b[i] = b[i - 1] << 1;
    if (i == 13) b[i] -= 100;
  }
  printf("%lld\n", b[n]);
  return 0;
}