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 n, f[10010];
int main() {
  cin >> n;
  memset(f, 0, sizeof(f));
  f[0] = 1;
  for (int i = 1; i <= n; i++) {
    f[i] = f[i - 1] * 2;
    if (i == 13) f[i] -= 100;
  }
  cout << f[n] << endl;
}