It is well-known that for any n there are exactly four n-digit numbers (including ones with leading zeros) that are self-squares: the last n digits of the square of such number are equal to the number itself. These four numbers are always suffixes of these four infinite sequences:
For example, =87909376, which ends with 09376.
You are required to count the numbers that are almost self-squares: such that each of the last n digits of their square is at most d away from the corresponding digit of the number itself. Note that we consider digits 0 and 9 to be adjacent, so for example digits that are at most 3 away from digit 8 are 5, 6, 7, 8, 9, 0 and 1.
The first line contains the number of test cases t,1≤t≤72. Each of the next t lines contains one test case: two numbers n(1≤n≤ 18) and d(0≤ d≤3).
For each test case, output the number of almost self-squares with length n and the (circular) distance in each digit from the square at most d in a line by itself.
2 5 0 2 1
In the second case, number 12's almost self-squares are: 00, 01, 10, 11, 15, 25, 35, 66, 76, 86, 90, 91