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, b = map(int, raw_input().split())
print [8533824895, 4369023041, 6246905437, 6253595997, 6261859165, 4379596097, 8545195391, 31973120, 5359932369, 1753546555, 2732754382, 6470747678, 882671615, 1254829703, 2192389205, 12462605, 3051539536, 3802390309, 595890157, 2193723792, 910809452, 3401336238, 3769820759, 1067701411, 527048132, 3511002880, 3043217791, 7268642369, 1058285917, 3085511773, 493838941, 255747649, 4625435519][a] >> b & 1