spoj#SUBSHARD. Subset and upset (HARD)
Subset and upset (HARD)
The whole world is crazy about subset sum. We define subset sum as sum of all subparts. A subpart is a number which is obtained by erasing certain digits and arranging the remaining numbers in the same order. You have to calculate the subset sum of the given number. Since the number can be very large return the subset sum modulo m.
For example if the number is 1357, then the various subparts are 1, 3, 5, 7, 13, 15, 17, 35, 37, 57, 137, 135, 157, 357, 1357 .
Input
First line contains T(1 ≤ T ≤ 50) denoting the number of test cases.
Next T lines containing two numbers n(0 < n < 101000) and m(1 < m < 109).
Output
Print the subset sum modulo m.
Example
Input:
6
111 9
111 200
456 9
456 1000
1357 1000
1357 5000
Output:
3
147
6
618
333
2333
Time Limit ≈ 2*(My Python 3 Program Top Speed)