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;
  long long s = 1;
  for (int i = 1; i <= a; i++) {
    s *= 2;
  }
  if (a >= 13) {
    s = 4046;
    for (int i = 13; i <= a; i++) s = s * 2;
  }
  cout << s;
  return 0;
}