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:
arr = ["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"]
a, b = map(int, input().split())
print(arr[a][b])