CF1915A.Odd One Out

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.

给你三个数字 $a$、$b$、$c$。其中两个数字相等，而第三个数字与其余两个不同。

请找出恰好出现一次的数值。

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.

第一行包含一个整数 $t$（$1 \leq t \leq 270$）—— 测试用例的数量。

每个测试用例仅一行，包含三个数字 $a$、$b$、$c$（$0 \leq a, b, c \leq 9$）。其中两个数字相等，但第三个数字与其余两个不同。

For each test case, output the value that occurs exactly once.

对于每个测试用例，输出恰好出现一次的值。