the longest common subsequence is "GTT" of them.So you should print "3".
I'm sure you can easily sovle it.So the challenge is coming again.(^_^)
输入解释
For each case,there are two lines.one is string A,the other is string B. the string Process to end of file.Each string will have at most 30000 characters. All the characters are in upper-case.
输出解释
For each case, output the maximum-length common subsequence.