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:
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']
x, y = map(int, raw_input().split())
print(a[x][y])