171_A. Mysterious numbers - 1


Input

The input contains two integers a1, a2 (0 ≤ ai ≤ 109), separated by a single space.

Output

Output a single integer.

Examples

Input

3 14


Output

44


Input

27 12


Output

48


Input

100 200


Output

102
```python
from math import floor

x, y = input().split()
x = int(x)
y = int(y)

rev = 0
while y > 0:
    a = int(y % 10)
    rev = rev * 10 + a
    y = floor(y / 10)
b = x + rev
print(b)

```