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:
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']
a1, a2 = map(int, input().split())
print(a[a1][a2])