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:
"""====================================================================================
   ====================================================================================
   
    ___             _______  ___    _______       ___   ___
   |         /\        |    |   \      |    |  / |   | |   | |\    /|
   |        /  \       |    |    \     |    | /  |   | |   | | \  / |
   |___    /____\      |    |     \    |    |/   |___| |   | |  \/  |
       |  /      \     |    |     /    |    |\   |\    |   | |      |
       | /        \    |    |    /     |    | \  | \   |   | |      |
    ___|/          \___|___ |___/   ___|___ |  \ |  \  |___| |      |
 
       
   ====================================================================================
   ==================================================================================== 
"""
# ♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥

a1,a2 = map(str,input().split())
a = int(a1) + int(a2[::-1])
print(a)

# ♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥
"""====================================================================================
   ====================================================================================
   
    ___             _______  ___    _______       ___   ___
   |         /\        |    |   \      |    |  / |   | |   | |\    /|
   |        /  \       |    |    \     |    | /  |   | |   | | \  / |
   |___    /____\      |    |     \    |    |/   |___| |   | |  \/  |
       |  /      \     |    |     /    |    |\   |\    |   | |      |
       | /        \    |    |    /     |    | \  | \   |   | |      |
    ___|/          \___|___ |___/   ___|___ |  \ |  \  |___| |      |
 
       
   ====================================================================================
   ==================================================================================== 
"""