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:
s = "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"

s = s.split(',')
a, b = raw_input().split()

print s[int(a)][int(b)]