-ic b-p bbb bbc bbh bbi bbo bbp bbs bby bcb bcc bch bci bco bcp bcs bcy bhb bhc bhh bhi bho bhp bhs bi- bib bic bih bii bio bip bis biy bob boc boh boi boo bop bos boy bpb bpc bph bpi bpo bpp bps bpy bsb bsc bsh bsi bso bsp bss bsy by- byc byh byi byo byp bys c-- cbb cbc cbh cbi cbo cbp cbs cby ccb ccc cch cci cco ccp ccs ch- chb chc chh chi cho chp chs chy ci- cib cic cih cii cio cip cis co- cob coc coh coi coo cop cos coy cpb cpc cph cpi cpo cpp cps csb csc csh csi cso csp css csy cyb cyc cyo cyp cys h-i hbb hbc hbh hbi hbo hbp hbs hby hcb hcc hch hci hco hcp hcs hcy hhb hhc hhh hhi hho hhp hhs hhy hib hic hih hii hio hip his hob hoc hoh hoi hoo hop hos hoy hpb hpc hph hpi hpo hpp hps hpy hsb hsc hsh hsi hsp hss hsy hy- hyb hyc hyh hyi hyo hyp hys hyy ibb ibc ibh ibi ibo ibp ibs iby icb icc ich ici ico icp ics icy ihb ihc ihh ihi iho ihp ihs ihy iib iic iih iii iio iip iis io- iob ioc ioh ioi ioo iop ios ipb ipc ipi ipo ipp ips ipy is- isb isc ish isi iso isp iss isy iyc iyo iys iyy o-i ob- obb obc obh obi obo obp obs oby oc- ocb occ och oci oco ocp ocs ohc ohh ohi oho ohp ohs oib oic oii oio oip ois oo- oob ooc ooh ooi ooo oop oos op- opb opc oph opi opo opp ops opy os- osb osc osh osi oso osp oss oyi oyo oys p-p pbb pbc pbi pbo pbp pbs pby pcb pcc pch pci pco pcp pcs phb phc phi pho php phs phy pib pic pih pii pio pip pis pob poc poh poi poo pop pos poy ppb ppc pph ppi ppo ppp pps ps- psb psc psh psi pso psp pss psy py- pyb pyc pyo pys sbb sbc sbh sbi sbo sbp sbs sby scb scc sch sci sco scp scs sh- shb shc shh shi sho shp shs shy sib sic sih sii sio sip sis sob soc soh soi soo sop sos soy spb spc sph spi spo spp sps spy ss- ssb ssc ssh ssi sso ssp sss sy- syb syc syh syi syp sys ybc ybi ybp ybs yby ycc ych yci yco ycp ycs ycy yhc yhi yhs yih yii yio yip yis yob yoc yoi yoo yop yos yoy ypo yps ysb ysc ysi yso ysp yss ysy yyb yyc yys yyy