-ic b-u bbb bbc bbd bbe bbi bbk bbo bbu bcb bcc bcd bce bci bck bco bcu bcv bdb bdc bdd bde bdi bdk bdo bdu bdv be- beb bec bed bee bei bek beo beu bev bi- bib bic bid bie bii bik bio biu biv bkb bkc bke bkk bko bkv bob boc bod boe boi bok boo bou bov bub buc bud bue bui buk buo buu bvb bvc bvd bve bvi bvk bvo bvu bvv c-- cbb cbc cbd cbe cbi cbk cbo cbu cbv ccb ccc ccd cce cci cck cco ccu ccv cdb cdc cdd cde cdi cdk cdo cdu cdv ce- ceb cec ced cee cei cek ceo ceu cev ci- cib cic cid cie cii cik cio ciu civ ckb ckc ckd cki cko co- cob coc cod coe coi cok coo cou cov cub cuc cud cue cui cuk cuo cuu cuv cvb cvc cvd cve cvi cvk cvo cvu cvv dbb dbc dbd dbe dbi dbk dbo dbu dbv dcb dcc dcd dce dci dck dco dcu dcv ddb ddc ddd dde ddi ddk ddo ddu de- deb dec ded dee dei dek deo deu dev di- dib dic did die dii dik dio diu div dkb dkc dke dki dkk dko dku dob doc dod doe doi dok doo dou dov dub duc dud due dui duk duo duv dvb dvc dvd dve dvi dvk dvu ebb ebc ebd ebe ebi ebk ebo ebu ebv ec- ecb ecc ecd ece eci eck eco ecu ecv ed- edb edc edd ede edi edk edo edu eeb eec eed eee eek eeo eev eib eic eid eie eii eik eio eiu eiv ekb ekc ekd eke eki eko eku ekv eo- eob eoc eod eoe eoi eok eoo eou eu- eub euc eud eue eui euv evb evc evd eve evi evo evv i-d i-v ibb ibc ibd ibe ibi ibk ibo ibu ibv icb icc icd ice ici ick ico icu icv idb idc idd ide idi idk ido idu idv ie- iec ied iee iei iek iev iib iic iid iie iii iio iiu ikb ikc ike iki ikk iko iku ikv io- iob ioc iod ioe ioi ioo iou iov iu- iub iuc iud iue iui ivb ivc ivd ive ivi ivo ivu ivv kbb kbc kbd kbe kbi kbk kbo kbu kcb kcc kcd kce kci kck kcu kdb kdc kde kdk kdo kdu ke- keb kec ked kee kei kek keo kev kib kic kid kie kii kik kio kiu kiv kkb kkc kke kki kkk kku kkv kob koc kod koe koi kok koo kou kub kuc kud kue kui kuk kuu kvb kvi kvk kvo kvv o-i ob- obb obc obd obe obi obk obo obu obv oc- ocb occ ocd oci ock oco ocu ocv odb odc odd ode odi odo odu odv oeb oec oed oee oei oeo oib oic oid oie oii oik oio oiu oiv okb okc okd oke oki okk oko oku oo- oob ooc ood ooi ook ooo oov ou- ouc oud oue oui ouk ouo ov- ovb ovc ovd ove ovi ovo ovv ubb ubc ube ubi ubk ubo ubu ubv ucb ucc ucd uce uci uck uco ucu ucv udb udc udd ude udi udk udo udu udv ueb uec ued uee uei uib uic uid uie uii uio uiu ukb ukc uke uki ukk uku uob uoc uod uoe uok uoo uuc uue uuu uvb uvc uve uvo uvu uvv v-e vbc vbd vbi vbk vbo vbv vcc vcd vce vci vco vcu vdb vdc vdd vde vdi vdk vdo vdu vdv veb vec ved vee vei vek veo veu vi- vib vic vid vie vii vik vio viu viv vkb vob voc vod voe voi vok voo vou vov vue vuk vuv vvb vvc vvi vvo vvv