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;
const int MOD = 1e9 + 7;
const int INF = INT_MAX;
const long long LINF = LLONG_MAX;
int a;
int main() {
  ios::sync_with_stdio(false), cin.tie(0), cout.tie(0);
  cin >> a;
  cout << a % 2 << endl;
}