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.