-ic b-p bbb bbc bbh bbi bbn bbo bbp bcb bcc bch bci bcn bco bcp bhb bhc bhh bhi bho bhp bi- bib bic bih bii bin bio bip bnb bnc bni bnn bno bnp bob boc boh boi bon boo bop bpb bpc bph bpi bpn bpo bpp c-- cbb cbc cbh cbi cbn cbo cbp ccb ccc cch cci ccn cco ccp ch- chb chc chh chi chn cho chp ci- cib cic cih cii cin cio cip cn- cnb cnc cnh cni cnn cno cnp co- cob coc coh coi con coo cop cpb cpc cph cpi cpn cpo cpp h-i hbb hbc hbh hbi hbn hbo hbp hcb hcc hch hci hcn hco hcp hhb hhc hhh hhi hhn hho hhp hib hic hih hii hin hio hip hnb hnc hnh hnn hno hob hoc hoh hoi hon hoo hop hpb hpc hph hpi hpn hpo hpp ibb ibc ibh ibi ibn ibo ibp icb icc ich ici icn ico icp ihb ihc ihh ihi ihn iho ihp iib iic iih iii iin iio iip in- inb inc inh ini inn ino inp io- iob ioc ioh ioi ion ioo iop ipb ipc ipi ipn ipo ipp n-i nbb nbc nbi nbn nbo nbp ncb ncc nch nci ncn nco ncp nhb nhc nhh nhi nhn nhp nib nic nih nii nin nio nip nnb nnc nnh nni nnn nno nnp no- nob noc noh noi non noo nop npb npc nph npi npn npo npp o-i ob- obb obc obh obi obn obo obp oc- ocb occ och oci ocn oco ocp ohc ohh ohi ohn oho ohp oib oic oii oin oio oip on- onb onc onh oni onn ono onp oo- oob ooc ooh ooi oon ooo oop op- opb opc oph opi opn opo opp p-p pbb pbc pbi pbn pbo pbp pcb pcc pch pci pcn pco pcp phb phc phi phn pho php pib pic pih pii pin pio pip pn- pnb pnc pnh pni pnn pno pnp pob poc poh poi pon poo pop ppb ppc pph ppi ppn ppo ppp