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Least Even Multiple

Easy
You get a positive integer num. Return the smallest positive integer that is divisible by both num and 2.
Example 1
num=7 → 14

7 is odd, so the smallest even multiple is 14.

Example 2
num=12 → 12

12 is already even and is a multiple of itself.

Example 3
num=1 → 2
Constraints
  • 1 ≤ num ≤ 150
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Topics
MathNumber Theory
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Input
num=7
Expected
14

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