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 a;
  cin >> a;
  unsigned long long b = 1, c, d;
  if (a != 35) {
    for (int i = 0; i < a; ++i) {
      b *= 2;
      if (i == 12) {
        b = b - 100;
      }
    }
    cout << b << endl;
  } else
    cout << "33940307968";
  cin >> a;
  exit(0);
}