-ic a-a a-b a-c a-i aaa aab aac aai aao aap aar aav ab- aba abb abc abi abo abp abr abv ac- aca acb acc aci aco acp acr acv ai- aia aib aic aii aio aip air aiv aoa aob aoc aoi aoo aop aor aov ap- apa apb apc api apo app apr apv ar- ara arb arc ari aro arp arr arv av- ava avb avc avi avo avp avr b-p baa bab bac bai bao bap bar bav bba bbb bbc bbi bbo bbp bbr bca bcb bcc bci bco bcp bcr bcv bi- bia bib bic bii bio bip bir biv boa bob boc boi boo bop bor bov bpa bpb bpc bpi bpo bpp bpr bpv bra brb bri bro brp brr brv bva bvb bvc bvi bvo bvp bvr bvv c-- caa cab cac cai cao cap car cav cba cbb cbc cbi cbo cbp cbr cbv cca ccb ccc cci cco ccp ccr ccv ci- cia cib cic cii cio cip cir civ co- coa cob coc coi coo cop cor cov cpa cpb cpc cpi cpo cpp cpr cpv cra crb crc cri cro crp crr crv cva cvb cvc cvi cvo cvp cvr cvv i-v ia- iaa iab iac iai iao iap iar iav iba ibb ibc ibi ibo ibp ibr ibv ica icb icc ici ico icp icr icv iia iib iic iii iio iip iir io- ioa iob ioc ioi ioo iop ior iov ipa ipb ipc ipi ipo ipp ipr ipv ir- ira irb irc iri iro irp irr irv iva ivb ivc ivi ivo ivp ivr ivv o-i oaa oab oac oai oao oap oar oav ob- oba obb obc obi obo obp obr obv oc- oca ocb occ oci oco ocp ocr ocv oia oib oic oii oio oip oir oiv oo- ooa oob ooc ooi ooo oop oor oov op- opa opb opc opi opo opp opr opv or- ora orb orc ori oro orp orr orv ov- ova ovb ovc ovi ovo ovp ovv p-p paa pab pac pai pao pap par pav pba pbb pbc pbi pbo pbp pbr pca pcb pcc pci pco pcp pcr pcv pia pib pic pii pio pip pir piv poa pob poc poi poo pop por pov ppa ppb ppc ppi ppo ppp ppr ppv pra prb prc pri pro prp prr prv pva pvb pvc pvi pvo pvp pvr pvv ra- raa rab rac rai rao rap rar rav rba rbb rbc rbi rbo rbp rbr rca rcb rcc rci rco rcp rcr rcv ria rib ric rii rio rip rir riv roa rob roc roi roo rop ror rov rpa rpb rpc rpi rpo rpp rpr rpv rra rrb rrc rri rrp rrr rva rvb rvc rvi rvo rvp rvr rvv v-a vaa vab vac vai vao vap var vav vba vbc vbi vbo vbr vbv vca vcc vci vco vcp vcr vi- via vib vic vii vio vip vir viv voa vob voc voi voo vop vor vov vpa vpb vpc vpi vpo vpp vpr vra vrb vrc vri vrp vrr vva vvb vvc vvi vvo vvr vvv