Permutations — list permutations of a set of integers
SignaturePermutation — sign or parity of a permutation
InversePermutation — apply an inverse permutation
CyclicGroup — group of circular shift permutations
Orbits — orbits induced by the action of the group
CycleIndex — cycle index of a group of permutations
Strings — subsets with repeating elements
ToCycles — find cycles for a permutation
HideCycles — represent the cycle in canonical form
