-up b-p b-u bbb bbc bbe bbk bbl bbp bbu bcb bcc bce bck bcl bcp bcu be- beb bec bee bek bel bep beu bkb bkc bke bkk bkl bkp blb blc ble blk bll blp blu bpb bpc bpe bpl bpp bpu bub buc bue buk bul bup buu c-- cbb cbc cbe cbk cbl cbp cbu ccb ccc cce cck ccl ccp ccu ce- ceb cec cee cek cel cep ceu ckb ckc cl- clb clc cle clk cll clp clu cpb cpc cpe cpk cpl cpp cpu cub cuc cue cuk cul cup cuu ebb ebc ebe ebk ebl ebp ebu ec- ecb ecc ece eck ecl ecu eeb eec eee eek eel eep ekb ekc eke ekl ekp eku elb elc ele elk ell elp elu ep- epb epc epe epl epp epu eu- eub euc eue eul eup kbb kbc kbe kbk kbl kbp kbu kcb kcc kce kck kcl kcp kcu ke- keb kec kee kek kel kep kkb kkc kke kkk kkl kkp kku kl- klb klc klu kpc kpe kpk kpl kpp kpu kub kuc kue kuk kul kup kuu l-p lbb lbc lbe lbk lbl lbp lbu lcb lcc lce lck lcl lcp lcu leb lec lee lek lel lep leu lkb lkl lkp llb llc lle llk lll llp llu lpb lpc lpe lpk lpl lpp lpu lub luc lue luk lul lup luu p-p pbb pbc pbe pbk pbl pbp pbu pcb pcc pce pck pcl pcp pcu peb pec pee pek pel pep peu pkb pkc pke pkl pkp pku plb plc ple plk pll plp plu ppb ppc ppe ppk ppl ppp ppu pub puc pue puk pul pup puu ubb ubc ube ubk ubl ubp ubu ucb ucc uce uck ucl ucp ucu ueb uec uee uel uep ukb ukc uke ukk ukl ukp uku ulb ulc ule ulk ull ulp ulu up- upb upc upe upk upp upu uuc uue uuu