What-The-Fatherland is a strange country! All phone numbers there are strings consisting of lowercase English letters. What is double strange that a phone number can be associated with several bears!

    In that country there is a rock band called CF consisting of n bears (including Mike) numbered from to .

    Phone number of -th member of CF is . May 17th is a holiday named Phone Calls day. In the last Phone Calls day, everyone called all the numbers that are substrings of his/her number (one may call some number several times). In particular, everyone called himself (that was really strange country).

    Denote as the number of times that -th member of CF called the -th member of CF.

    The geek Mike has questions that he wants to ask you. In each question he gives you numbers , and and you should tell him the number

输入描述:

The first line of input contains integers  and  ( and ).
The next  lines contain the phone numbers, -th line contains a string  consisting of lowercase English letters ().
The next q lines contain the information about the questions, each of them contains integers ,  and  ( ≤ n and ).

输出描述:

Print the answer for each question in a separate line.

5 5
a
ab
abab
ababab
b
1 5 1
3 5 1
1 5 2
1 5 3
1 4 5

7
5
6
3
6

备注:

来自codeforces：http://codeforces.com/contest/547/problem/E