题解 | 小红的合数寻找
小红的合数寻找
https://www.nowcoder.com/practice/2a35a6306f204ea3ab76ff10d188ff9e
x = int(input()) print(2*x if x != 1 else -1)
小红的合数寻找
https://www.nowcoder.com/practice/2a35a6306f204ea3ab76ff10d188ff9e
x = int(input()) print(2*x if x != 1 else -1)
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