Given two strings and is defined to be the remaining string after taking all the characters in from . Your task is simply to calculate for any given strings. However, it might not be that simple to do it fast.
Each input file contains one test case. Each case consists of two lines which gives and , respectively. The string lengths of both strings are no more than . It is guaranteed that all the characters are visible ASCII codes and white space, and a new line character signals the end of a string.
For each test case, print in one line.
They are students.
Thy r stdnts.
a = input()