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;
vector<long long> v;
void fun() {
  long long i = 1;
  int c = 0;
  long long ext = 1, e2;
  for (;; i *= 2) {
    if (c <= 12)
      v.push_back(i);
    else {
      e2 = i - (ext * 100);
      ext *= 2;
      v.push_back(e2);
    }
    if (c > 35) break;
    c++;
  }
}
int main() {
  int n;
  cin >> n;
  fun();
  cout << v[n];
  return 0;
}