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() {
  int i;
  long long int n = 1;
  scanf("%i", &i);
  while (i--) {
    n += n;
    if (n == 8192) n -= 100;
  }
  printf("%I64d\n", n);
  return 0;
}