A permutation code C is defined as a subset of the Symmetric Group in S_n endowed with the usual Hamming distance between strings of length n. More precisely, if \sigma, \tau are permutations in S_n, then d(\tau, \sigma) = |\left \{ i \in \{1, 2, ..., n\} : \sigma(i) \neq \tau(i) \right \}|
