Given B[1-m], a string of characters from some alphabets, Bⁱ is defined as string with the characters of B each repeating i times. For example, (abbacc)³ = aaabbbbbbaaacccccc. Also, B⁰ 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 number 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 number 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