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;
int main() {
  string s;
  s = "111111101010101111100101001111111100000100000000001010110001000001101110"
      "100110110000011010001011101101110101011001001111101001011101101110101100"
      "011000111100101011101100000101010101011010000101000001111111101010101010"
      "101010101111111000000001111101111100111100000000100010111100100001011110"
      "111111001110111001111111100100001000101100011100111010000101000111010001"
      "010011110000110001111110101100000011111111111111111000111001001011000111"
      "000010111010011010011010100100101010100010110010110101010000010101100000"
      "101010001111101000000000000010100011001101000111101011010101001001111101"
      "111000101010001110101101111111000100100001110001000000010011000100110000"
      "011010000010001101101001101110010010011011000011101011010001000111101010"
      "100110111010100110011101001101000001110110001010010101111000101111111000"
      "001000111011100001010110111110000000000001110010110100010100010110111111"
      "101000101111000110101011010100000100111010101111100100011011101110101001"
      "010000101000111111000101110100011010010010111111011010101110100100011011"
      "110110101110000100000100110011001111100111100000111111101101000101001101"
      "110010001";
  int m[33][33];
  for (int i = 0; i < 33; i++) {
    for (int j = 0; j < 33; j++) {
      m[i][j] = s[i * 33 + j] - '0';
    }
  }
  int a, b;
  cin >> a >> b;
  cout << m[a][b];
  return 0;
}