SPOJ Problem Set (classical) 665. String it out Problem code: SUBS

Let A and B be two strings made up of alphabets such that A = A_[1-n], B = B_[1-m]. We say B is a subsequence of A if there exists a sequence of indices i₁ < i₂ <..m of A such that A[i_k] = B[k].

Given B[1-m], a string of characters from some alphabets, B^i is defined as string with the characters of B each repeating i times. For example, (abbacc)^3 = aaabbbbbbaaacccccc. Also, B^0 is the empty string.

Given strings X, Y made up of characters from 'a' - 'z' find the maximum value of M such that X^M is a subsequence of Y.

Input

• The first line of the input contains a positive integer t <= 20, denoting the no. of test cases.
• The following 2t lines contain the value of X and Y for the cases.
• The description of the test cases follow one after the other.
  • Line 2k contains the value of X for case k; (1 <= k <= t)
  • Line 2k+1 contains the value of Y for case k; (1 <= k <= t).
  • The no. of characters in X , Y will be <= 500010.

Output

The output must contain t lines, each line corresponding to a test case. The value on the k^th line should be the value of M for the k^th pair of X and Y.

Example

Input:
3
abc
aabbcc
abc
bbccc
abcdef
abc

Output:
2
0
0

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Added by:	Kashyap KBR
Date:	2005-12-12
Time limit:	8s
Source limit:	50000B
Languages:	All except: PERL 6