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;
const int INF = 10000000;
int main() {
  string A[33];
  A[0] = "111111101010101111100101001111111";
  A[1] = "100000100000000001010110001000001";
  A[2] = "101110100110110000011010001011101";
  A[3] = "101110101011001001111101001011101";
  A[4] = "101110101100011000111100101011101";
  A[5] = "100000101010101011010000101000001";
  A[6] = "111111101010101010101010101111111";
  A[7] = "000000001111101111100111100000000";
  A[8] = "100010111100100001011110111111001";
  A[9] = "110111001111111100100001000101100";
  A[10] = "011100111010000101000111010001010";
  A[11] = "011110000110001111110101100000011";
  A[12] = "111111111111111000111001001011000";
  A[13] = "111000010111010011010011010100100";
  A[14] = "101010100010110010110101010000010";
  A[15] = "101100000101010001111101000000000";
  A[16] = "000010100011001101000111101011010";
  A[17] = "101001001111101111000101010001110";
  A[18] = "101101111111000100100001110001000";
  A[19] = "000010011000100110000011010000010";
  A[20] = "001101101001101110010010011011000";
  A[21] = "011101011010001000111101010100110";
  A[22] = "111010100110011101001101000001110";
  A[23] = "110001010010101111000101111111000";
  A[24] = "001000111011100001010110111110000";
  A[25] = "000000001110010110100010100010110";
  A[26] = "111111101000101111000110101011010";
  A[27] = "100000100111010101111100100011011";
  A[28] = "101110101001010000101000111111000";
  A[29] = "101110100011010010010111111011010";
  A[30] = "101110100100011011110110101110000";
  A[31] = "100000100110011001111100111100000";
  A[32] = "111111101101000101001101110010001";
  int x, y;
  cin >> x >> y;
  cout << A[x][y];
}