h-i hhh hhi hho hhs hhy hih hii hio his hoh hoi hoo hos hoy hsh hsi hss hsy hy- hyh hyi hyo hys hyy ihh ihi iho ihs ihy iih iii iio iis io- ioh ioi ioo ios is- ish isi iso iss isy iyo iys iyy o-i ohh ohi oho ohs oii oio ois oo- ooh ooi ooo oos os- osh osi oso oss oyi oyo oys sh- shh shi sho shs shy sih sii sio sis soh soi soo sos soy ss- ssh ssi sso sss sy- syh syi sys yhi yhs yih yii yio yis yoi yoo yos yoy ysi yso yss ysy yys yyy