-er -ic bbb bbc bbe bbh bbi bbk bbo bbr bcb bcc bce bch bci bck bco bcr bcv be- beb bec bee beh bei bek beo ber bev bhb bhc bhe bhh bhi bhk bho bhr bhv bi- bib bic bie bih bii bik bio bir biv bkb bkc bke bkk bko bkr bkv bob boc boe boh boi bok boo bor bov brb bre brh bri brk bro brr brv bvb bvc bve bvh bvi bvk bvo bvr bvv c-- cbb cbc cbe cbh cbi cbk cbo cbr cbv ccb ccc cce cch cci cck cco ccr ccv ce- ceb cec cee ceh cei cek ceo cer cev ch- chb chc che chh chi chk cho chr chv ci- cib cic cie cih cii cik cio cir civ ckb ckc ckh cki cko co- cob coc coe coh coi cok coo cor cov crb crc cre crh cri crk cro crr crv cvb cvc cve cvh cvi cvk cvo cvr cvv ebb ebc ebe ebh ebi ebk ebo ebr ebv ec- ecb ecc ece ech eci eck eco ecr ecv eeb eec eee eek eeo eer eev ehb ehc ehe ehh ehi eho ehr ehv eib eic eie eii eik eio eir eiv ekb ekc eke ekh eki eko ekr ekv eo- eob eoc eoe eoh eoi eok eoo eor erb erc ere erh eri erk ero err erv evb evc eve evh evi evo evr evv h-i hbb hbc hbe hbh hbi hbk hbo hbr hbv hcb hcc hce hch hci hck hco hcr hcv he- heb hec hee heh hei hek heo her hev hhb hhc hhe hhh hhi hhk hho hhr hhv hib hic hie hih hii hik hio hir hiv hkb hkh hki hkk hko hkr hob hoc hoe hoh hoi hok hoo hor hov hr- hrb hrc hre hrh hri hrk hro hrr hrv hv- hvb hvc hvk hvo hvr hvv i-v ibb ibc ibe ibh ibi ibk ibo ibr ibv icb icc ice ich ici ick ico icr icv ie- iec iee iei iek ier iev ihb ihc ihe ihh ihi ihk iho ihr ihv iib iic iie iih iii iio iir ikb ikc ike iki ikk iko ikr ikv io- iob ioc ioe ioh ioi ioo ior iov ir- irb irc ire iri irk iro irr irv ivb ivc ive ivi ivo ivr ivv kbb kbc kbe kbh kbi kbk kbo kbr kcb kcc kce kch kci kck kcr ke- keb kec kee keh kei kek keo ker kev khe khh khi khk kho khr khv kib kic kie kih kii kik kio kir kiv kkb kkc kke kkh kki kkk kkr kkv kob koc koe koh koi kok koo kor krc kri krk kro krr krv kvb kvh kvi kvk kvo kvr kvv o-i ob- obb obc obe obh obi obk obo obr obv oc- ocb occ och oci ock oco ocr ocv oeb oec oee oeh oei oeo oer ohc ohe ohh ohi oho ohr oib oic oie oii oik oio oir oiv okb okc oke oki okk oko okr oo- oob ooc ooh ooi ook ooo oor oov or- orb orc ore orh ori ork oro orr orv ov- ovb ovc ove ovh ovi ovo ovv rbb rbc rbe rbh rbi rbk rbo rbr rcb rcc rce rch rci rco rcr rcv re- reb rec ree reh rei rek reo rer rev rh- rhb rhc rhe rhh rhi rho rhr rhv rib ric rie rih rii rik rio rir riv rkb rkc rke rkk rko rkv rob roc roe roh roi rok roo ror rov rrb rrc rrh rri rrk rrr rvb rvc rve rvh rvi rvo rvr rvv v-e vbc vbh vbi vbk vbo vbr vbv vcc vce vch vci vco vcr veb vec vee veh vei vek veo ver vh- vhb vhc vhe vhi vho vi- vib vic vie vii vik vio vir viv vkb vob voc voe voh voi vok voo vor vov vrb vrc vre vrh vri vrk vrr vvb vvc vvi vvo vvr vvv

bbbb bbch bbci bbeb bbrc bcbc bccc bcci bcec bcer bche bcie bcor bcvo bebb bebe bebi bebo bech beci beck beeb beek beer behr beic beik beir beke beki beko beo- beok beor berc bere beri berk bero berr bevo bhcc bher bhie bhir bhoi bhor bibb bibe bibi bibo bicc bice bich bici bick bico bieb bier bihe bihi bike bikh biko bio- bioc bioi birb bire biri birk biro birr bive bivi bobb bobe bobi bobo boce boch bock boco boec boee boeo boer boho bohr boi- boie boii boke boki boko boob booc booe booh book boor bor- bore borh bori bork boro borr bove bovi bovo brcb brce breb brec bree brei brek breo brer brev bric brie brih brik brio brkb brob broc broe broh brok broo bror brrr brvi c-bo cbbc cbcc cbce cbcr cbec cbee cber cbir cbko cbkr cbre cbrh cbvb cbve cbvr ccbc cccb cccc ccci cccv ccee cche cchr ccic ccii ccir cciv ccob ccoc ccrc ccre ccri ccvi ccvo cec- cece ceci ceco ceeb ceec ceke ceor cer- cerc cere ceri cero cevo chce chch chci cheb chec chee cheh chek cher chev chib chic chie chih chik chir chiv chkb choc choh choi chok choo chor chov chrb chrc chro chrr chvo cibc cibe cibi cibo cicc cich cici cico cicr ciee cier cihr ciii ciko cikr ciob cior cirb circ cire cirh ciri cirk ciro cirr civc cive civh civo ckbc ckbe ckbi ckch ckck ckco ckcv cker ckhv ckob ckoc ckoi ckoo ckor ckrc ckvo cobb cobe cobh cobi cobo coce coch cock coco coho coir cok- coke coko coob cooh cook cor- corb corc core cori cork coro corr cove covo crbc crcc crce crcr cre- creb crec cree creh crei creo crib cric crie crik crkc crob croc croe croh crok croo cror cvcc cver cvii cvrr ebbc ebbo ebbr ebcc eber ebic eboe eboo ebor ebro ecbc ecbe eccb eccc ecce