Virtual contest is a way to take part in past contest, as close as possible to participation on time. It is supported only ICPC mode for virtual contests.
If you've seen these problems, a virtual contest is not for you - solve these problems in the archive.
If you just want to solve some problem from a contest, a virtual contest is not for you - solve this problem in the archive.
Never use someone else's code, read the tutorials or communicate with other person during a virtual contest.
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.