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;
string txt[33], st;
int a1, a2, i, k;
int main() {
  txt[0] = "111111101010101111100101001111111";
  txt[1] = "100000100000000001010110001000001";
  txt[2] = "101110100110110000011010001011101";
  txt[3] = "101110101011001001111101001011101";
  txt[4] = "101110101100011000111100101011101";
  txt[5] = "100000101010101011010000101000001";
  txt[6] = "111111101010101010101010101111111";
  txt[7] = "000000001111101111100111100000000";
  txt[8] = "100010111100100001011110111111001";
  txt[9] = "110111001111111100100001000101100";
  txt[10] = "011100111010000101000111010001010";
  txt[11] = "011110000110001111110101100000011";
  txt[12] = "111111111111111000111001001011000";
  txt[13] = "111000010111010011010011010100100";
  txt[14] = "101010100010110010110101010000010";
  txt[15] = "101100000101010001111101000000000";
  txt[16] = "000010100011001101000111101011010";
  txt[17] = "101001001111101111000101010001110";
  txt[18] = "101101111111000100100001110001000";
  txt[19] = "000010011000100110000011010000010";
  txt[20] = "001101101001101110010010011011000";
  txt[21] = "011101011010001000111101010100110";
  txt[22] = "111010100110011101001101000001110";
  txt[23] = "110001010010101111000101111111000";
  txt[24] = "001000111011100001010110111110000";
  txt[25] = "000000001110010110100010100010110";
  txt[26] = "111111101000101111000110101011010";
  txt[27] = "100000100111010101111100100011011";
  txt[28] = "101110101001010000101000111111000";
  txt[29] = "101110100011010010010111111011010";
  txt[30] = "101110100100011011110110101110000";
  txt[31] = "100000100110011001111100111100000";
  txt[32] = "111111101101000101001101110010001";
  cin >> a1 >> a2;
  k = txt[a1][a2];
  cout << k - 48;
}