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 main() {
  double res, n, dif, i;
  scanf("%lf", &n);
  if (n < 13)
    res = pow(2, n);
  else {
    dif = n - 12;
    res = 8092;
    for (i = 1; i < dif; i++) res *= 2;
  }
  printf("%.0lf\n", res);
}