Round To Nearest Multiple

You are given an integer n and a positive integer m.

Return the multiple of m that is closest to n. If n sits exactly halfway between two multiples, round to the larger one (round half up).

For example, with m = 10: 25 rounds to 30, and 24 rounds to 20.

NOTE: This is a function-type question — you only write the function. Do not read input or print anything; a hidden checker calls your function and checks its return value.

Example

Arguments

25
10

Returns

30