Codeforces Round 981 (Div. 3) |
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Finished |
Kosuke is too lazy. He will not give you any legend, just the task:
Fibonacci numbers are defined as follows:
As this number can be too big, output it by modulo $$$10^9+7$$$.
For example: $$$G(3,2)=9$$$ because the $$$3$$$-rd Fibonacci number that is divisible by $$$2$$$ is $$$34$$$. $$$[1,1,\textbf{2},3,5,\textbf{8},13,21,\textbf{34}]$$$.
The first line of the input data contains a single integer $$$t$$$ ($$$1 \le t \le 10^4$$$) — the number of test cases.
The first and only line contains two integers $$$n$$$ and $$$k$$$ ($$$1 \le n \le 10^{18}$$$, $$$1 \le k \le 10^5$$$).
It is guaranteed that the sum of $$$k$$$ across all test cases does not exceed $$$10^6$$$.
For each test case, output the only number: the value $$$G(n,k)$$$ taken by modulo $$$10^9+7$$$.
33 2100 11000000000000 1377
9 100 999244007
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