#1602. Eming_1
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ID: 1602
传统题
1000ms
128MiB
尝试: 0
已通过: 0
难度: (无)
上传者:
Eming_1
说明
Eming is a contest hold by WHUACM training team. The aim is to select new members of the team.
Usually, the first problem is a very simple problem such as “a+b problem”. But this time, Xioumu is tired of this kind of problem, he decide to solve “a and b problem”.
Give you the result of a + b and a^2 – b^2, please output the result of a and b.
输入格式
There are several test cases. For each case there are two double numbers indicating a+b and a^2-b^2. You may assume that a+b will not be zero.输出格式
For each case please output the result of a and b in one line, rounded to 2 decimal places.样例
3 -31.00 2.00