When you get so bored you type qwertyuiopasdfghjklzxcvbnm and
plokmijnuhbygvtfcrdxeszwaq andqazwsxedcrfvtgbyhnujmikolp
and you want to find out how many combonations of these we little buttons on a plastic board you can press in a order
because you saw the other Ones of these and you found powqoireutalksdjgmbcv
you're a student at school and you dont want to do you're work so you type many combos of letters in different ways
and you find powqoireutalksdjgmbcv