b-u bbb bbc bbe bbh bbo bbu bcb bcc bce bch bco bcu bcv bcz be- beb bec bee beh beo beu bev bez bhb bhc bhe bhh bho bhu bhv bob boc boe boh boo bou bov boz bub buc bue buh buo buu buz bvb bvc bve bvh bvo bvu bvv bze bzh bzo bzu bzz c-- cbb cbc cbe cbh cbo cbu cbv cbz ccb ccc cce cch cco ccu ccv ccz ce- ceb cec cee ceh ceo ceu cev cez ch- chb chc che chh cho chu chv chz co- cob coc coe coh coo cou cov coz cub cuc cue cuh cuo cuu cuv cuz cvb cvc cve cvh cvo cvu cvv cvz cz- czc cze czo ebb ebc ebe ebh ebo ebu ebv ec- ecb ecc ece ech eco ecu ecv eeb eec eee eeo eev ehb ehc ehe ehh eho ehu ehv eo- eob eoc eoe eoh eoo eou eu- eub euc eue euv evb evc eve evh evo evv eze ezh ezo ezz hbb hbc hbe hbh hbo hbu hbv hbz hcb hcc hce hch hco hcv he- heb hec hee heh heo heu hev hez hhb hhc hhe hhh hho hhu hhv hhz hob hoc hoe hoh hoo hou hov hub huc hue huh huo huu huv huz hv- hvb hvc hvo hvv hze hzo ob- obb obc obe obh obo obu obv oc- ocb occ och oco ocu ocv ocz oeb oec oee oeh oeo ohc ohe ohh oho ohu oo- oob ooc ooh ooo oov ou- ouc oue ouh ouo ov- ovb ovc ove ovh ovo ovv oze ozo ozu ozz ubb ubc ube ubh ubo ubu ubv ucb ucc uce uch uco ucu ucv ueb uec uee ueh uhb uhc uhe uhh uho uhu uhv uob uoc uoe uoo uuc uue uuu uvb uvc uve uvo uvu uvv uzb uzh uzo uzu v-e vbc vbh vbo vbv vbz vcc vce vch vco vcu veb vec vee veh veo veu vez vh- vhb vhc vhe vho vob voc voe voh voo vou vov voz vue vuv vuz vvb vvc vvo vvv vvz zbb zbc zbv zce zco zeb zec zee zeh zeo zev zez zhc zhe zho zhu zo- zob zoc zoe zoo zou zub zuc zuz zzz