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 x;
  cin >> x;
  long long temp = pow(2, x);
  if (x >= 13) {
    int y = temp % 100;
    temp = temp / 100;
    int q = 1;
    if (x == 13) temp -= 1;
    for (int i = 14; i <= 35; i++) {
      q *= 2;
      if (i == x) {
        temp = temp - q;
        break;
      }
    }
    temp = temp * 100;
    temp += y;
  }
  cout << temp << endl;
  return 0;
}