#P3302. Subsequence

    ID: 2312 远端评测题 1000ms 64MiB 尝试: 0 已通过: 0 难度: (无) 上传者: 标签>Amirkabir University of Technology Local Contest 2006

Subsequence

Description

Given a string s of length n, a subsequence of it, is defined as another string s' = su1su2...sum where 1 ≤ u1 < u2 < ... < umn and si is the ith character of s. Your task is to write a program that, given two strings s1 and s2, checks whether either s2 or its reverse is a subsequence of s1 or not.

Input

The first line of input contains an integer T, which is the number of test cases. Each of the next T lines contains two non-empty strings s1 and s2 (with length at most 100) consisted of only alpha-numeric characters and separated from each other by a single space.

Output

For each test case, your program must output "YES", in a single line, if either s2 or its reverse is a subsequence of s1. Otherwise your program should write "NO".

5
arash aah
arash hsr
kick kkc
A a
a12340b b31
YES
YES
NO
NO
YES

Source

Amirkabir University of Technology Local Contest 2006