

Input

The input contains a single integer a (10 ≤ a ≤ 999).

Output

Output 0 or 1.

Examples

Input

13


Output

1


Input

927


Output

1


Input

48


Output

0
#include <bits/stdc++.h>
using namespace std;
long long a = 0, b = 0, a1, b1, c1, a2, b2, c2, n, m, cnt = 0, ans, d;
string g, s;
int main() {
  vector<long long> v;
  cin >> a;
  if (a % 2 == 0)
    cout << 0;
  else
    cout << 1;
}
