-up a-a a-b a-c aaa aab aac aae aam aap aau ab- aba abb abc abe abm abp abu ac- aca acb acc ace acm acp acu aea aeb aec aee aem aep aeu ama amb amc ame amm amp amu ap- apa apb apc ape apm app apu au- aua aub auc aue aum aup b-p b-u baa bab bac bae bam bap bau bba bbb bbc bbe bbm bbp bbu bca bcb bcc bce bcm bcp bcu be- bea beb bec bee bem bep beu bma bmb bmc bme bmm bmp bmu bpa bpb bpc bpe bpm bpp bpu bua bub buc bue bum bup buu c-- caa cab cac cae cam cap cau cba cbb cbc cbe cbm cbp cbu cca ccb ccc cce ccm ccp ccu ce- cea ceb cec cee cem cep ceu cma cmb cmc cme cmm cmp cmu cpa cpb cpc cpe cpm cpp cpu cua cub cuc cue cum cup cuu eaa eab eac eae eam eap eau eba ebb ebc ebe ebm ebp ebu ec- eca ecb ecc ece ecm ecu eea eeb eec eee eem eep em- ema emb emc eme emm emp emu ep- epa epb epc epe epm epp epu eu- eua eub euc eue eup maa mab mac mae mam map mau mba mbb mbc mbe mbm mbp mbu mc- mca mcb mcc mce mcm mcp mcu mea meb mec mee mem mep meu mma mmb mmc mme mmm mmp mmu mpa mpb mpc mpe mpm mpp mpu mua mub muc mue mum mup muu p-p paa pab pac pae pam pap pau pba pbb pbc pbe pbm pbp pbu pca pcb pcc pce pcm pcp pcu pea peb pec pee pem pep peu pma pmb pmc pme pmm pmp pmu ppa ppb ppc ppe ppm ppp ppu pua pub puc pue pum pup puu ua- uaa uab uac uae uam uap uau uba ubb ubc ube ubp ubu uca ucb ucc uce ucm ucp ucu uea ueb uec uee uem uep um- uma umb umc ume umm ump umu up- upa upb upc upe upm upp upu uua uuc uue uum uuu