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 int n, sum = 1;
  cin >> n;
  for (int i = 0; i < n; i++) {
    sum *= 2;
    if (i == 12) sum = sum - 100;
  }
  cout << sum;
}