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;
double a[1000005], b[1000005];
int main() {
  long long int n;
  cin >> n;
  long long int ans = 1;
  for (int i = 0; i < n; i++) {
    ans = ans * 2;
    if (ans == 8192) ans = 8092;
  }
  cout << ans;
}