#P3726. Windy's ABC
Windy's ABC
Description
Windy is a stupid boy who can only write ABC. Now he has written a string S which contains only ABC and wonder how many string is a good copy of S. A copy is a permutation of S and a copy is good if and only if the distance between the positions of every letter in S and the copy is in a certain range. The range of distance of letter A B C is RA, RB and RC.
Input
The first line of input is the number of test case.
The first line of each test case contains three integers, RA, RB and RC.
The second line contains string S.
There is a blank line before each test case.
0 ≤ RA, RB and RC ≤ 10^9
0 < The length of S ≤ 500
Output
For each test case output the answer on a single line. Since the answer may be very large, just output the answer modulo 20090305.
4
1 1 0
AB
1 1 0
ABBA
2 3 4
ABBBABACCBCAABCBBCCC
3 1 5
ABCCCBCABACAAAB
2
4
645716
6660
Source
POJ Monthly Contest – 2009.04.05, windy7926778