0
1
2
3
4
5
6
7
{0 => "OUT", 1 => "IN", 2 => "TOLLFREE", 3 => "RECORD", 4 => "AD", 5 => "CS", 6 => "OA", 7 => "OAM"}
Set.new([OUT, IN, TOLLFREE, RECORD, AD, CS, OA, OAM]).freeze