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>
int a;
long long ans;
int main() {
  scanf("%d", &a);
  ans = 1;
  for (int i = 1; i <= a; i++) {
    ans *= 2;
    if (i == 13) ans -= 100;
  }
  printf("%I64d", ans);
  return 0;
}