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# Author Problem Lang Verdict Time Memory Sent Judged  
258280914 Virtual:
Kvadratuku: Gegedosh, MakShon, kapopenko# 		1567B - 36 Python 3 Accepted 202 ms 4280 KB 2024-04-26 21:54:56 2024-04-26 21:54:56
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for s in[*open(0)][1:]:a,b=map(int,s.split());x=(0,a-1,1,a)[a%4];print(a+(b!=x)+(b^x==a))
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