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 n, sum(1);
  scanf("%lld", &n);
  for (int i(1); i <= n; i += 1) {
    sum <<= 1;
    if (i == 13) sum -= 100;
  }
  printf("%lld", sum);
  return 0;
}