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.

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.

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