Permutations For RUFFS

Here are all the permutations for the letters RUFFS.

rufs rufs rfus rfsu rfus rfsu rsfu rsfu urfs urfs ufrs ufsr ufrs ufsr usfr usfr frus frsu furs fusr fsru fsur frus frsu furs fusr fsru fsur srfu srfu sufr sufr sfru sfur sfru sfur