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 MAXN = 505;
char mat[MAXN][MAXN] = {
    {"111111101010101111100101001111111"},
    {"100000100000000001010110001000001"},
    {"101110100110110000011010001011101"},
    {"101110101011001001111101001011101"},
    {"101110101100011000111100101011101"},
    {"100000101010101011010000101000001"},
    {"111111101010101010101010101111111"},
    {"000000001111101111100111100000000"},
    {"100010111100100001011110111111001"},
    {"110111001111111100100001000101100"},
    {"011100111010000101000111010001010"},
    {"011110000110001111110101100000011"},
    {"111111111111111000111001001011000"},
    {"111000010111010011010011010100100"},
    {"101010100010110010110101010000010"},
    {"101100000101010001111101000000000"},
    {"000010100011001101000111101011010"},
    {"101001001111101111000101010001110"},
    {"101101111111000100100001110001000"},
    {"000010011000100110000011010000010"},
    {"001101101001101110010010011011000"},
    {"011101011010001000111101010100110"},
    {"111010100110011101001101000001110"},
    {"110001010010101111000101111111000"},
    {"001000111011100001010110111110000"},
    {"000000001110010110100010100010110"},
    {"111111101000101111000110101011010"},
    {"100000100111010101111100100011011"},
    {"101110101001010000101000111111000"},
    {"101110100011010010010111111011010"},
    {"101110100100011011110110101110000"},
    {"100000100110011001111100111100000"},
    {"111111101101000101001101110010001"},
};
int main() {
  int a, b;
  scanf("%d %d", &a, &b);
  printf("%c\n", mat[a][b]);
  return 0;
}