Permutations For KURNR

Here are all the permutations for the letters KURNR.

kurn kurn krun krnu knru knru krun krnu ukrn ukrn urkn urnk unrk unrk urkn urnk rkun rknu rukn runk rnku rnuk nkru nkru nurk nurk nrku nruk nrku nruk rkun rknu rukn runk rnku rnuk