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Chiaki is interested in an infinite sequence a1, a2, a3, ..., which defined as follows:
where rn is the smallest positive integer not in the set Sn = {aj - ai | 1 ≤ i < j ≤ n}.
Chiaki would like to know the sum of the first n terms of the sequence, i.e. . As this number may be very large, Chiaki is only interested in its remainder modulo (109 + 7).
There are multiple test cases. The first line of input contains an integer T (1 ≤ T ≤ 1000), indicating the number of test cases. For each test case:
The first line contains an integer n (1 ≤ n < 10100) without leading zeros.
For each test case, output an integer denoting the answer.
11 1 2 3 4 5 6 7 8 9 10 1000000000
1 3 7 15 31 52 94 145 247 359 834069170