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() {
  int n;
  long long int r = 1;
  cin >> n;
  for (int i = 0; i < n; i++) {
    r = r * 2;
    if (r == 8192) {
      r = r - 100;
    }
  }
  cout << r;
  return 0;
}