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:
ans = [["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"]];x,y = map(int,input().split());print(ans[x][0][y])