b-u bbb bbc bbd bbe bbk bbl bbm bbt bbu bcb bcc bcd bce bck bcl bcm bct bcu bdb bdc bdd bde bdk bdl bdm bdt bdu be- beb bec bed bee bek bel bem bet beu bkb bkc bke bkk bkl bkm bkt blb blc bld ble blk bll blm blt blu bmb bmc bmd bme bmk bml bmm bmt bmu btb btc btd bte btk btl btm btt btu bub buc bud bue buk bul bum but buu c-- cbb cbc cbd cbe cbk cbl cbm cbt cbu ccb ccc ccd cce cck ccl ccm cct ccu cdb cdc cdd cde cdk cdl cdm cdt cdu ce- ceb cec ced cee cek cel cem cet ceu ckb ckc ckd ckm ckt cl- clb clc cld cle clk cll clm clt clu cmb cmc cmd cme cmk cml cmm cmt cmu ctb ctc ctd cte ctk ctl ctm ctt ctu cub cuc cud cue cuk cul cum cut cuu dbb dbc dbd dbe dbk dbl dbm dbt dbu dcb dcc dcd dce dck dcl dcm dct dcu ddb ddc ddd dde ddk ddl ddm ddt ddu de- deb dec ded dee dek del dem det deu dkb dkc dke dkk dkl dkm dkt dku dl- dlb dlc dld dle dlk dll dlm dlt dlu dmb dmc dmd dme dmk dml dmm dmt dmu dtb dtc dtd dte dtk dtl dtm dtt dtu dub duc dud due duk dul dum dut ebb ebc ebd ebe ebk ebl ebm ebt ebu ec- ecb ecc ecd ece eck ecl ecm ect ecu ed- edb edc edd ede edk edl edm edt edu eeb eec eed eee eek eel eem eet ekb ekc ekd eke ekl ekt eku elb elc eld ele elk ell elm elt elu em- emb emc emd eme emk eml emm emt emu etb etc etd ete etk etl etm ett etu eu- eub euc eud eue eul eut k-t kbb kbc kbd kbe kbk kbl kbm kbu kcb kcc kcd kce kck kcl kcm kct kcu kdb kdc kde kdk kdl kdm kdt kdu ke- keb kec ked kee kek kel kem ket kkb kkc kke kkk kkl kkm kkt kku kl- klb klc kld klm klt klu kmb kmc kmd kme kmk kml kmm kmt kmu ktb ktc kte ktk ktl ktm ktt ktu kub kuc kud kue kuk kul kum kut kuu lbb lbc lbd lbe lbk lbl lbm lbt lbu lcb lcc lcd lce lck lcl lcm lct lcu ldb ldc ldd lde ldk ldl ldm ldt ldu leb lec led lee lek lel lem let leu lkb lkl lkt llb llc lld lle llk lll llm llt llu lmb lmc lmd lme lmk lml lmm lmt lmu ltb ltc ltd lte ltk ltl ltm ltt ltu lub luc lud lue luk lul lum lut luu mbb mbc mbd mbe mbk mbl mbm mbt mbu mc- mcb mcc mcd mce mck mcl mcm mct mcu mdb mdc mdd mde mdk mdl mdm mdt mdu meb mec med mee mek mel mem met meu mkb mkc mkd mke mkk mkl mkm mkt mku mlb mlc mld mle mlk mll mlm mlt mlu mmb mmc mmd mme mmk mml mmm mmt mmu mtb mtc mtd mte mtk mtl mtm mtt mtu mub muc mud mue muk mul mum mut muu tbb tbc tbd tbe tbk tbl tbm tbt tbu tcb tcc tcd tce tck tcl tcm tct tcu tdb tdc tdd tde tdk tdl tdm tdt tdu te- teb tec ted tee tek tel tem tet teu tkb tkc tke tkk tkl tkm tkt tlc tld tle tlk tll tlm tlt tlu tmb tmc tmd tme tmk tml tmm tmt tmu ttb ttc ttd tte ttk ttl ttm ttt ttu tub tuc tud tue tuk tul tum tut tuu ubb ubc ube ubk ubl ubt ubu ucb ucc ucd uce uck ucl ucm uct ucu udb udc udd ude udk udl udm udt udu ueb uec ued uee uel uem uet ukb ukc uke ukk ukl uku ulb ulc uld ule ulk ull ulm ult ulu um- umb umc umd ume uml umm umt umu utb utc utd ute utk utl utm utt utu uuc uue uum uut uuu