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;
long long x, y,
    a[] = {8545356415, 4362120257, 6255293533, 6264519261, 6267107677,
           4384465217, 8545195391, 33017600,   4690329081, 7415415340,
           3879898762, 4039633667, 8589701720, 7565059748, 5710113410,
           5916654080, 342265690,  5535926926, 6172066696, 320013954,
           1832330456, 3947133606, 7865276942, 6615960568, 1198566896,
           30098710,   8541146458, 4377475355, 6260543992, 6248017882,
           6250425712, 4375509472, 8550259601};
int main() {
  cin >> x >> y;
  cout << (a[x] >> (32 - y) & 1) << endl;
}