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 PYTHON):

Solution:
def qrcode():
    a = ['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']
    m = map(int,raw_input().split(' '))
    print a[m[0]][m[1]]
qrcode()