Permutations For PROOF

Here are all the permutations for the letters PROOF.

prof prof porf pofr porf pofr pfor pfor rpof rpof ropf rofp ropf rofp rfop rfop oprf opfr orpf orfp ofpr ofrp oprf opfr orpf orfp ofpr ofrp fpor fpor frop frop fopr forp fopr forp