题解 | #牛牛的加减器#
牛牛的加减器
https://www.nowcoder.com/practice/13e575e3bd4b4ed0aba7be2fa1efcb3f
x=int(input())
y=int(input())
print(x+y)
print(x-y)
y=int(input())
print(x+y)
print(x-y)
牛牛的加减器
https://www.nowcoder.com/practice/13e575e3bd4b4ed0aba7be2fa1efcb3f
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