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 PYTHON3):

Solution:
list = ['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']

n,m=map(int,input().split())
print(list[n][m])