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 n = 1;
  int i;
  cin >> i;
  if (i > 12) {
    i -= 13;
    n = 8092;
  }
  while (i--) n *= 2;
  cout << n << endl;
}