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;
int n;
int main() {
  cin >> n;
  if (n >= 13) {
    cout << (1LL << n) - (1LL << (n - 13)) * 100 << "\n";
  } else {
    cout << (1LL << n) << "\n";
  }
  return 0;
}