-up a-a a-b a-c aaa aab aac aad aae aak aap aau ab- aba abb abc abd abe abk abp abu ac- aca acb acc acd ace ack acp acu ad- ada adb adc add ade adk adp adu aea aeb aec aed aee aek aep aeu aka akb akc akd ake akk akp aku ap- apa apb apc apd ape apk app apu au- aua aub auc aud aue auk aup b-p b-u baa bab bac bad bae bak bap bau bba bbb bbc bbd bbe bbk bbp bbu bca bcb bcc bcd bce bck bcp bcu bda bdb bdc bdd bde bdk bdp bdu be- bea beb bec bed bee bek bep beu bka bkb bkc bke bkk bkp bpa bpb bpc bpd bpe bpp bpu bua bub buc bud bue buk bup buu c-- caa cab cac cad cae cak cap cau cba cbb cbc cbd cbe cbk cbp cbu cca ccb ccc ccd cce cck ccp ccu cda cdb cdc cdd cde cdk cdp cdu ce- cea ceb cec ced cee cek cep ceu cka ckb ckc ckd cpa cpb cpc cpd cpe cpk cpp cpu cua cub cuc cud cue cuk cup cuu daa dab dac dad dae dak dap dau dba dbb dbc dbd dbe dbk dbp dbu dca dcb dcc dcd dce dck dcp dcu dda ddb ddc ddd dde ddk ddp ddu de- dea deb dec ded dee dek dep deu dka dkb dkc dke dkk dkp dku dpa dpb dpc dpd dpe dpk dpp dpu dua dub duc dud due duk dup eaa eab eac ead eae eak eap eau eba ebb ebc ebd ebe ebk ebp ebu ec- eca ecb ecc ecd ece eck ecu ed- eda edb edc edd ede edk edp edu eea eeb eec eed eee eek eep eka ekb ekc ekd eke ekp eku ep- epa epb epc epd epe epp epu eu- eua eub euc eud eue eup ka- kaa kab kac kad kae kak kap kau kba kbb kbc kbd kbe kbk kbp kbu kca kcb kcc kcd kce kck kcp kcu kda kdb kdc kde kdk kdp kdu ke- kea keb kec ked kee kek kep kkb kkc kke kkk kkp kku kpa kpc kpd kpe kpk kpp kpu kub kuc kud kue kuk kup kuu p-p paa pab pac pad pae pak pap pau pba pbb pbc pbd pbe pbk pbp pbu pca pcb pcc pcd pce pck pcp pcu pda pdb pdc pdd pde pdk pdp pdu pea peb pec ped pee pek pep peu pka pkb pkc pkd pke pkp pku ppa ppb ppc ppd ppe ppk ppp ppu pua pub puc pud pue puk pup puu ua- uaa uab uac uad uae uak uap uau uba ubb ubc ube ubk ubp ubu uca ucb ucc ucd uce uck ucp ucu uda udb udc udd ude udk udp udu uea ueb uec ued uee uep uka ukb ukc uke ukk ukp uku up- upa upb upc upd upe upk upp upu uua uuc uue uuu