题目描述
You are given three digits $a$, $b$, $c$. Two of them are equal, but the third one is different from the other two.
Find the value that occurs exactly once.
Input
The first line contains a single integer $t$ ($1 \leq t \leq 270$) — the number of test cases.
The only line of each test case contains three digits $a$, $b$, $c$ ($0 \leq a$, $b$, $c \leq 9$). Two of the digits are equal, but the third one is different from the other two.
Output
For each test case, output the value that occurs exactly once.
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分
样例输入
10
1 2 2
4 3 4
5 5 6
7 8 8
9 0 9
3 6 3
2 8 2
5 7 7
7 7 5
5 7 5
样例输出
1
3
6
7
0
6
8
5
5
7