Create Investigation (Digit DP).cpp

[4d4r5h]

Input

Input starts with an integer T (≤ 200), denoting the number of test cases.
Each case contains three positive integers A, B and K (1 ≤ A ≤ B < 2^31 and 0 < K < 10000).

Output

For each case, output the case number and the number of integers in the range [A, B] which are divisible by K and the sum of its digits is also divisible by K.

Input
3
1 20 1
1 20 2
1 1000 4

Output
Case 1: 20
Case 2: 5
Case 3: 64