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:
x = "\
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,raw_input().strip().split())
print x[n*33+m]