Codeforces Round 928 (Div. 4) |
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Finished |
Vladislav has n cards numbered 1,2,…,n. He wants to lay them down in a row as follows:
The first line contains an integer t (1≤t≤5⋅104) — the number of test cases.
The only line of each test case contains two integers n and k (1≤k≤n≤109) — the number of cards Vlad has, and the position of the card you need to output.
For each test case, output a single integer — the k-th card Vladislav lays down.
117 17 27 37 47 57 67 71 134 1484 191000000000 1000000000
1 3 5 7 2 6 4 1 27 37 536870912
In the first seven test cases, n=7. Vladislav lays down the cards as follows:
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