-ic b-p bbb bbc bbe bbi bbo bbp bcb bcc bce bci bco bcp bcv bcz be- beb bec bee bei beo bep bev bez bi- bib bic bie bii bio bip biv biz bob boc boe boi boo bop bov boz bpb bpc bpe bpi bpo bpp bpv bvb bvc bve bvi bvo bvp bvv bze bzo bzp bzz c-- cbb cbc cbe cbi cbo cbp cbv cbz ccb ccc cce cci cco ccp ccv ccz ce- ceb cec cee cei ceo cep cev cez ci- cib cic cie cii cio cip civ co- cob coc coe coi coo cop cov coz cpb cpc cpe cpi cpo cpp cpv cpz cvb cvc cve cvi cvo cvp cvv cvz cz- czc cze czo ebb ebc ebe ebi ebo ebp ebv ec- ecb ecc ece eci eco ecv eeb eec eee eeo eep eev eib eic eie eii eio eip eiv eo- eob eoc eoe eoi eoo eop ep- epb epc epe epi epo epp epz evb evc eve evi evo evp evv eze ezo ezz i-v ibb ibc ibe ibi ibo ibp ibv ibz icb icc ice ici ico icp icv icz ie- iec iee iei iep iev iib iic iie iii iio iip io- iob ioc ioe ioi ioo iop iov ipb ipc ipe ipi ipo ipp ipv ivb ivc ive ivi ivo ivp ivv ize izi izo izz o-i ob- obb obc obe obi obo obp obv oc- ocb occ oci oco ocp ocv ocz oeb oec oee oei oeo oep oib oic oie oii oio oip oiv oiz oo- oob ooc ooi ooo oop oov op- opb opc ope opi opo opp opv ov- ovb ovc ove ovi ovo ovp ovv oze ozo ozz p-p pbb pbc pbe pbi pbo pbp pbz pcb pcc pce pci pco pcp pcv peb pec pee pei peo pep pev pez pib pic pie pii pio pip piv piz pob poc poe poi poo pop pov poz ppb ppc ppe ppi ppo ppp ppv ppz pvb pvc pve pvi pvo pvp pvv pvz pzc pzp v-e vbc vbi vbo vbv vbz vcc vce vci vco vcp veb vec vee vei veo vep vez vi- vib vic vie vii vio vip viv viz vob voc voe voi voo vop vov voz vpb vpc vpe vpi vpo vpp vvb vvc vvi vvo vvv vvz zbb zbc zbv zce zco zeb zec zee zeo zep zev zez zib zie zio zip ziv ziz zo- zob zoc zoe zoi zoo zpc zpe zpi zpo zpp zvi zzz