-ic b-p bbb bbc bbh bbi bbo bbp bbr bcb bcc bch bci bco bcp bcr bhb bhc bhh bhi bho bhp bhr bi- bib bic bih bii bio bip bir bob boc boh boi boo bop bor bpb bpc bph bpi bpo bpp bpr brb brh bri bro brp brr c-- cbb cbc cbh cbi cbo cbp cbr ccb ccc cch cci cco ccp ccr ch- chb chc chh chi cho chp chr ci- cib cic cih cii cio cip cir co- cob coc coh coi coo cop cor cpb cpc cph cpi cpo cpp cpr crb crc crh cri cro crp crr h-i hbb hbc hbh hbi hbo hbp hbr hcb hcc hch hci hco hcp hcr hhb hhc hhh hhi hho hhp hhr hib hic hih hii hio hip hir hob hoc hoh hoi hoo hop hor hpb hpc hph hpi hpo hpp hpr hr- hrb hrc hrh hri hro hrp hrr ibb ibc ibh ibi ibo ibp ibr icb icc ich ici ico icp icr ihb ihc ihh ihi iho ihp ihr iib iic iih iii iio iip iir io- iob ioc ioh ioi ioo iop ior ipb ipc ipi ipo ipp ipr ir- irb irc iri iro irp irr o-i ob- obb obc obh obi obo obp obr 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 or- orb orc orh ori oro orp orr p-p pbb pbc pbi pbo pbp pbr pcb pcc pch pci pco pcp pcr phb phc phi pho php phr pib pic pih pii pio pip pir pob poc poh poi poo pop por ppb ppc pph ppi ppo ppp ppr prb prc prh pri pro prp prr 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 rob roc roh roi roo rop ror rpb rpc rph rpi rpo rpp rpr rrb rrc rrh rri rrp rrr