Permutations For STOPOS

Here are all the permutations for the letters STOPOS.

stop stop sotp sopt spot spot sotp sopt tsop tsop tosp tosp tosp tosp tsop tsop ostp ospt otsp otsp opst opst ostp ospt psot psot post post post post psot psot ostp ospt otsp otsp opst opst ostp ospt stop stop sotp sopt spot spot sotp sopt