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 str[111];
void prepare() {
  str[0] = "111111101010101111100101001111111";
  str[1] = "100000100000000001010110001000001";
  str[2] = "101110100110110000011010001011101";
  str[3] = "101110101011001001111101001011101";
  str[4] = "101110101100011000111100101011101";
  str[5] = "100000101010101011010000101000001";
  str[6] = "111111101010101010101010101111111";
  str[7] = "000000001111101111100111100000000";
  str[8] = "100010111100100001011110111111001";
  str[9] = "110111001111111100100001000101100";
  str[10] = "011100111010000101000111010001010";
  str[11] = "011110000110001111110101100000011";
  str[12] = "111111111111111000111001001011000";
  str[13] = "111000010111010011010011010100100";
  str[14] = "101010100010110010110101010000010";
  str[15] = "101100000101010001111101000000000";
  str[16] = "000010100011001101000111101011010";
  str[17] = "101001001111101111000101010001110";
  str[18] = "101101111111000100100001110001000";
  str[19] = "000010011000100110000011010000010";
  str[20] = "001101101001101110010010011011000";
  str[21] = "011101011010001000111101010100110";
  str[22] = "111010100110011101001101000001110";
  str[23] = "110001010010101111000101111111000";
  str[24] = "001000111011100001010110111110000";
  str[25] = "000000001110010110100010100010110";
  str[26] = "111111101000101111000110101011010";
  str[27] = "100000100111010101111100100011011";
  str[28] = "101110101001010000101000111111000";
  str[29] = "101110100011010010010111111011010";
  str[30] = "101110100100011011110110101110000";
  str[31] = "100000100110011001111100111100000";
  str[32] = "111111101101000101001101110010001";
}
int main() {
  int n, m;
  prepare();
  cin >> n >> m;
  int ans = 0;
  if (str[n][m] == '1') ans++;
  if (str[32 - n][m] == '1') ans++;
  if (str[n][32 - m] == '1') ans++;
  if (str[32 - n][32 - m] == '1') ans++;
  cout << str[n][m] << endl;
  return 0;
}