b-u bbb bbc bbe bbh bbk bbl bbm bbu bcb bcc bce bch bck bcl bcm bcu be- beb bec bee beh bek bel bem beu bhb bhc bhe bhh bhk bhl bhm bhu bkb bkc bke bkk bkl bkm blb blc ble blh blk bll blm blu bmb bmc bme bmh bmk bml bmm bmu bub buc bue buh buk bul bum buu c-- cbb cbc cbe cbh cbk cbl cbm cbu ccb ccc cce cch cck ccl ccm ccu ce- ceb cec cee ceh cek cel cem ceu ch- chb chc che chh chk chl chm chu ckb ckc ckh ckm cl- clb clc cle clh clk cll clm clu cmb cmc cme cmh cmk cml cmm cmu cub cuc cue cuh cuk cul cum cuu ebb ebc ebe ebh ebk ebl ebm ebu ec- ecb ecc ece ech eck ecl ecm ecu eeb eec eee eek eel eem ehb ehc ehe ehh ehl ehm ehu ekb ekc eke ekh ekl eku elb elc ele elh elk ell elm elu em- emb emc eme emh emk eml emm emu eu- eub euc eue eul hbb hbc hbe hbh hbk hbl hbm hbu hcb hcc hce hch hck hcl hcm he- heb hec hee heh hek hel hem heu hhb hhc hhe hhh hhk hhl hhm hhu hkb hkh hkk hkl hkm hku hlb hlc hle hlh hll hlm hlu hmb hmc hme hmh hmk hml hmm hmu hub huc hue huh huk hul hum huu kbb kbc kbe kbh kbk kbl kbm kbu kcb kcc kce kch kck kcl kcm kcu ke- keb kec kee keh kek kel kem khe khh khk khm khu kkb kkc kke kkh kkk kkl kkm kku kl- klb klc klh klm klu kmb kmc kme kmh kmk kml kmm kmu kub kuc kue kuh kuk kul kum kuu lbb lbc lbe lbh lbk lbl lbm lbu lcb lcc lce lch lck lcl lcm lcu leb lec lee leh lek lel lem leu lhb lhc lhh lhk lhu lkb lkh lkl llb llc lle llk lll llm llu lmb lmc lme lmh lmk lml lmm lmu lub luc lue luh luk lul lum luu mbb mbc mbe mbh mbk mbl mbm mbu mc- mcb mcc mce mch mck mcl mcm mcu meb mec mee meh mek mel mem meu mhc mhh mhk mhl mhm mhu mkb mkc mke mkh mkk mkl mkm mku mlb mlc mle mlh mlk mll mlm mlu mmb mmc mme mmh mmk mml mmm mmu mub muc mue muh muk mul mum muu ubb ubc ube ubh ubk ubl ubu ucb ucc uce uch uck ucl ucm ucu ueb uec uee ueh uel uem uhb uhc uhe uhh uhl uhm uhu ukb ukc uke ukk ukl uku ulb ulc ule ulk ull ulm ulu um- umb umc ume umh uml umm umu uuc uue uum uuu