Permutations For UPNIP

Here are all the permutations for the letters UPNIP.

upni upin unpi unpi uipn uipn upni upin puni puin pnui pniu piun pinu nupi nupi npui npiu nipu nipu npui npiu iupn iupn ipun ipnu inpu inpu ipun ipnu puni puin pnui pniu piun pinu