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 main() {
  long long int cases = 1;
  while (cases--) {
    long long int n;
    cin >> n;
    if (n % 2 == 1)
      cout << "1\n";
    else
      cout << "0\n";
  }
  return 0;
}