Problem
I have a string S consisting of lower-case alphabetic characters, 'a' - 'z'. Each maximal sequence of contiguous characters that are the same is called a "run". For example, "bookkeeper" has 7 runs. How many different permutations of S have exactly the same number of runs as S?
Two permutations a
and b
are considered different if there exists some index i
at which they have a different character: a[i] ≠ b[i]
.
Input
The first line of the input gives the number of test cases, T. T lines follow. Each contains a single non-empty string of lower-case alphabetic characters, S, the string of interest.
Output
For each test case, output one line containing "Case #x: y", where x is the case number (starting from 1) and y is the number of different permutations of S that have exactly the same number of runs as S, modulo 1000003.
Limits
1 ≤ T ≤ 100.
S is at least 1 character long.
Memory limit: 1GB.
Small dataset (Test set 1 - Visible; 14 Points)
S is at most 100 characters long.
Time limit: 30 6 seconds.
Large dataset (Test set 2 - Hidden; 16 Points)
S is at most 450000 characters long.
S has at most 100 runs.
The input file will not exceed 1 megabyte in size.
Time limit: 60 12 seconds.
Sample
2 aabcd bookkeeper
Case #1: 24 Case #2: 7200