-ic a-a a-b a-c a-i aaa aab aac aad aai aar aau aav ab- aba abb abc abd abi abr abu abv ac- aca acb acc acd aci acr acu acv ad- ada adb adc add adi adr adu adv ai- aia aib aic aid aii air aiu aiv ar- ara arb arc ard ari arr aru arv au- aua aub auc aud aui aur auv av- ava avb avc avd avi avr avu b-u baa bab bac bad bai bar bau bav bba bbb bbc bbd bbi bbr bbu bca bcb bcc bcd bci bcr bcu bcv bda bdb bdc bdd bdi bdr bdu bdv bi- bia bib bic bid bii bir biu biv bra brb brd bri brr bru brv bua bub buc bud bui bur buu bva bvb bvc bvd bvi bvr bvu bvv c-- caa cab cac cad cai car cau cav cba cbb cbc cbd cbi cbr cbu cbv cca ccb ccc ccd cci ccr ccu ccv cda cdb cdc cdd cdi cdr cdu cdv ci- cia cib cic cid cii cir ciu civ cra crb crc crd cri crr cru crv cua cub cuc cud cui cur cuu cuv cva cvb cvc cvd cvi cvr cvu cvv daa dab dac dad dai dar dau dav dba dbb dbc dbd dbi dbr dbu dbv dca dcb dcc dcd dci dcr dcu dcv dda ddb ddc ddd ddi ddr ddu di- dia dib dic did dii dir diu div dra drb drc drd dri drr dru drv dua dub duc dud dui dur duv dva dvb dvc dvd dvi dvr dvu i-d i-v ia- iaa iab iac iad iai iar iau iav iba ibb ibc ibd ibi ibr ibu ibv ica icb icc icd ici icr icu icv ida idb idc idd idi idr idu idv iia iib iic iid iii iir iiu ir- ira irb irc ird iri irr iru irv iu- iua iub iuc iud iui iur iva ivb ivc ivd ivi ivr ivu ivv ra- raa rab rac rad rai rar rau rav rba rbb rbc rbd rbi rbr rbu rca rcb rcc rcd rci rcr rcu rcv rda rdb rdc rdd rdi rdr rdu rdv ria rib ric rid rii rir riv rra rrb rrc rrd rri rrr rru rua rub ruc rud rui rur ruu ruv rva rvb rvc rvd rvi rvr rvu rvv ua- uaa uab uac uad uai uar uau uav uba ubb ubc ubi ubr ubu ubv uca ucb ucc ucd uci ucr ucu ucv uda udb udc udd udi udr udu udv uia uib uic uid uii uir uiu ur- ura urb urc urd uri urr uru uua uuc uur uuu uva uvb uvc uvu uvv v-a vaa vab vac vad vai var vau vav vba vbc vbd vbi vbr vbv vca vcc vcd vci vcr vcu vdb vdc vdd vdi vdr vdu vdv vi- via vib vic vid vii vir viu viv vra vrb vrc vrd vri vrr vru vur vuv vva vvb vvc vvi vvr vvv