pqvn qqvn0 rqvn0w sqvn tqvn0
ehwn0 fhwn0w ghwn hhwn0 ihwn0w
37wn0w 47wn 57wn0 67wn0w 77wn
syxn tyxn0 uyxn0w vyxn wyxn0
hpyn0 ipyn0w jpyn kpyn0 lpyn0w