Time Limit: 0.5 seconds
Memory Limit: 256 megabytes
Johny likes numbers n and k very much. Now Johny wants to find the smallest integer x greater than n, so it is divisible by the number k.
The only line contains two integers n and k (1 ≤ n, k ≤ 109).
Print the smallest integer x > n, so it is divisible by the number k.
Input5 3Output6Input25 13Output26Input26 13Output39
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