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:
ch=[ ' 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,raw_input().split())
print ch[a][b+1]