Problem: <image>

Input

The input contains two integers a1, a2 (0 ≤ ai ≤ 32), separated by a single space.

Output

Output a single integer.

Examples

Input

1 1


Output

0


Input

3 7


Output

0


Input

13 10


Output

1

Solution (in CPP):

Solution:
#include <bits/stdc++.h>
using namespace std;
bool sortbysec(const pair<int, int> &a, const pair<int, int> &b) {
  if (a.second == b.second) return (a.first < b.first);
  return (a.second < b.second);
}
int main(void) {
  long long a, b;
  cin >> a >> b;
  string str = to_string(b);
  reverse(str.begin(), str.end());
  long long d = atoi(str.c_str());
  cout << d + a;
  return 0;
}