Equi String

Given two strings of equal length, you have to tell whether both strings are identical. Two strings $S1$ and $S2$ are said to be identical if any of the permutations of string $S1$ is equal to the string $S2$. ###Input -First line, contains an integer $T$ denoting no. of test cases. -Each test consists of a single line, containing two space-separated strings $S1$ and $S2$ of equal length. ##