b-u bbb bbc bbe bbh bbo bbs bbu bcb bcc bce bch bco bcs bcu bcv be- beb bec bee beh beo bes beu bev bhb bhc bhe bhh bho bhs bhu bhv bob boc boe boh boo bos bou bov bsb bsc bse bsh bso bss bsu bsv bub buc bue buh buo bus buu bvb bvc bve bvh bvo bvs bvu bvv c-- cbb cbc cbe cbh cbo cbs cbu cbv ccb ccc cce cch cco ccs ccu ccv ce- ceb cec cee ceh ceo ces ceu cev ch- chb chc che chh cho chs chu chv co- cob coc coe coh coo cos cou cov csb csc cse csh cso css csu csv cub cuc cue cuh cuo cus cuu cuv cvb cvc cve cvh cvo cvs cvu cvv ebb ebc ebe ebh ebo ebs ebu ebv ec- ecb ecc ece ech eco ecs ecu ecv eeb eec eee eeo ees eev ehb ehc ehe ehh eho ehs ehu ehv eo- eob eoc eoe eoh eoo eos eou es- esb esc ese esh eso ess esu esv eu- eub euc eue eus euv evb evc eve evh evo evs evv hbb hbc hbe hbh hbo hbs hbu hbv hcb hcc hce hch hco hcs hcv he- heb hec hee heh heo hes heu hev hhb hhc hhe hhh hho hhs hhu hhv hob hoc hoe hoh hoo hos hou hov hsb hsc hse hsh hss hsu hsv hub huc hue huh huo hus huu huv hv- hvb hvc hvo hvs hvv ob- obb obc obe obh obo obs obu obv oc- ocb occ och oco ocs ocu ocv oeb oec oee oeh oeo oes ohc ohe ohh oho ohs ohu oo- oob ooc ooh ooo oos oov os- osb osc ose osh oso oss osu osv ou- ouc oue ouh ouo ous ov- ovb ovc ove ovh ovo ovs ovv sbb sbc sbe sbh sbo sbs sbu sbv scb scc sce sch sco scs scu scv se- seb sec see seh seo ses seu sev sh- shb shc she shh sho shs shu shv sob soc soe soh soo sos sou sov ss- ssb ssc sse ssh sso sss ssu ssv sub suc sue suh suo sus suu suv svb svc sve svo svs svu svv ubb ubc ube ubh ubo ubs ubu ubv ucb ucc uce uch uco ucs ucu ucv ueb uec uee ueh ues uhb uhc uhe uhh uho uhs uhu uhv uob uoc uoe uoo uos usb usc use ush uso uss usu usv uuc uue uus uuu uvb uvc uve uvo uvs uvu uvv v-e vbc vbh vbo vbs vbv vcc vce vch vco vcs vcu veb vec vee veh veo ves veu vh- vhb vhc vhe vho vhs vob voc voe voh voo vos vou vov vsb vsc vse vsh vso vss vsu vsv vue vus vuv vvb vvc vvo vvs vvv