-ic b-p bbb bbc bbh bbi bbo bbp bbr bby bcb bcc bch bci bco bcp bcr bcy bhb bhc bhh bhi bho bhp bhr bi- bib bic bih bii bio bip bir biy bob boc boh boi boo bop bor boy bpb bpc bph bpi bpo bpp bpr bpy brb brh bri bro brp brr bry by- byc byh byi byo byp byr c-- cbb cbc cbh cbi cbo cbp cbr cby ccb ccc cch cci cco ccp ccr ch- chb chc chh chi cho chp chr chy ci- cib cic cih cii cio cip cir co- cob coc coh coi coo cop cor coy cpb cpc cph cpi cpo cpp cpr crb crc crh cri cro crp crr cry cyb cyc cyo cyp cyr h-i hbb hbc hbh hbi hbo hbp hbr hby hcb hcc hch hci hco hcp hcr hcy hhb hhc hhh hhi hho hhp hhr hhy hib hic hih hii hio hip hir hob hoc hoh hoi hoo hop hor hoy hpb hpc hph hpi hpo hpp hpr hpy hr- hrb hrc hrh hri hro hrp hrr hy- hyb hyc hyh hyi hyo hyp hyr hyy ibb ibc ibh ibi ibo ibp ibr iby icb icc ich ici ico icp icr icy ihb ihc ihh ihi iho ihp ihr ihy iib iic iih iii iio iip iir io- iob ioc ioh ioi ioo iop ior ipb ipc ipi ipo ipp ipr ipy ir- irb irc iri iro irp irr iry iyc iyo iyr iyy o-i ob- obb obc obh obi obo obp obr oby oc- ocb occ och oci oco ocp ocr ohc ohh ohi oho ohp ohr oib oic oii oio oip oir oo- oob ooc ooh ooi ooo oop oor op- opb opc oph opi opo opp opr opy or- orb orc orh ori oro orp orr ory oyi oyo p-p pbb pbc pbi pbo pbp pbr pby pcb pcc pch pci pco pcp pcr phb phc phi pho php phr phy pib pic pih pii pio pip pir pob poc poh poi poo pop por poy ppb ppc pph ppi ppo ppp ppr prb prc prh pri pro prp prr pry py- pyb pyc pyo pyr rbb rbc rbh rbi rbo rbp rbr rcb rcc rch rci rco rcp rcr rh- rhb rhc rhh rhi rho rhp rhr rib ric rih rii rio rip rir riy rob roc roh roi roo rop ror roy rpb rpc rph rpi rpo rpp rpr rrb rrc rrh rri rrp rrr ry- ryc ryo ryr ryy ybc ybi ybp ybr yby ycc ych yci yco ycp ycy yhc yhi yih yii yio yip yir yob yoc yoi yoo yop yor yoy ypo yrc yro yrp yyb yyc yyy