#P171A. Mysterious numbers - 1

    ID: 8967 Type: RemoteJudge 2000ms 256MiB Tried: 0 Accepted: 0 Difficulty: 4 Uploaded By: Tags>*special problemconstructive algorithms*1200

Mysterious numbers - 1

Description

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

Output a single integer.

Input

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

Output

Output a single integer.

3 14

27 12

100 200

44

48

102