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>
using namespace std;
long long ans, n;
int main() {
  cin >> n;
  ans = 1;
  long long i = 1;
  while (i <= n) {
    ans *= 2, i++;
    if (i == 14) ans -= 100;
  }
  cout << ans << endl;
  return 0;
}