-ic b-p bbb bbc bbd bbe bbh bbi bbo bbp bcb bcc bcd bce bch bci bco bcp bdb bdc bdd bde bdh bdi bdo bdp be- beb bec bed bee beh bei beo bep bhb bhc bhd bhe bhh bhi bho bhp bi- bib bic bid bie bih bii bio bip bob boc bod boe boh boi boo bop bpb bpc bpd bpe bph bpi bpo bpp c-- cbb cbc cbd cbe cbh cbi cbo cbp ccb ccc ccd cce cch cci cco ccp cdb cdc cdd cde cdh cdi cdo cdp ce- ceb cec ced cee ceh cei ceo cep ch- chb chc chd che chh chi cho chp ci- cib cic cid cie cih cii cio cip co- cob coc cod coe coh coi coo cop cpb cpc cpd cpe cph cpi cpo cpp dbb dbc dbd dbe dbh dbi dbo dbp dcb dcc dcd dce dci dco dcp ddb ddc ddd dde ddh ddi ddo ddp de- deb dec ded dee deh dei deo dep dh- dhb dhc dhd dhe dhh dhi dho dhp di- dib dic did die dih dii dio dip dob doc dod doe doh doi doo dop dpb dpc dpd dpe dph dpi dpo dpp ebb ebc ebd ebe ebh ebi ebo ebp ec- ecb ecc ecd ece ech eci eco ed- edb edc edd ede edh edi edo edp eeb eec eed eee eeo eep ehb ehc ehd ehe ehh ehi eho ehp eib eic eid eie eii eio eip eo- eob eoc eod eoe eoh eoi eoo eop ep- epb epc epd epe eph epi epo epp h-i hbb hbc hbd hbe hbh hbi hbo hbp hcb hcc hcd hce hch hci hco hcp hdb hdc hdd hde hdh hdi hdo hdp he- heb hec hed hee heh hei heo hep hhb hhc hhd hhe hhh hhi hho hhp hib hic hid hie hih hii hio hip hob hoc hod hoe hoh hoi hoo hop hpb hpc hpd hpe hph hpi hpo hpp i-d ibb ibc ibd ibe ibh ibi ibo ibp icb icc icd ice ich ici ico icp idb idc idd ide idh idi ido idp ie- iec ied iee iei iep ihb ihc ihd ihe ihh ihi iho ihp iib iic iid iie iih iii iio iip io- iob ioc iod ioe ioh ioi ioo iop ipb ipc ipd ipe ipi ipo ipp o-i ob- obb obc obd obe obh obi obo obp oc- ocb occ ocd och oci oco ocp odb odc odd ode odh odi odo odp oeb oec oed oee oeh oei oeo oep ohc ohd ohe ohh ohi oho ohp oib oic oid oie oii oio oip oo- oob ooc ood ooh ooi ooo oop op- opb opc opd ope oph opi opo opp p-p pbb pbc pbd pbe pbi pbo pbp pcb pcc pcd pce pch pci pco pcp pdb pdc pdd pde pdh pdi pdo pdp peb pec ped pee peh pei peo pep phb phc phd phe phi pho php pib pic pid pie pih pii pio pip pob poc pod poe poh poi poo pop ppb ppc ppd ppe pph ppi ppo ppp