import itertools

wordList = open("wordlist.txt", "r").readlines() # import words into list
wordListOut = open("output.txt", "w")

wordList = [item.rstrip() for item in wordList] # strip n from list items
for item in [x for x in itertools.permutations(wordList, 3)]:
    wordListOut.write("".join("%s %s %sn" % item))

wordListOut.close()