-er -up a-a a-b a-c aaa aab aac aae aah aap aar aau ab- aba abb abc abe abh abp abr abu ac- aca acb acc ace ach acp acr acu aea aeb aec aee aeh aep aer aeu aha ahb ahc ahe ahh ahp ahr ahu ap- apa apb apc ape aph app apr apu ar- ara arb arc are arh arp arr aru au- aua aub auc aue auh aup aur b-p b-u baa bab bac bae bah bap bar bau bba bbb bbc bbe bbh bbp bbr bbu bca bcb bcc bce bch bcp bcr bcu be- bea beb bec bee beh bep ber beu bha bhb bhc bhe bhh bhp bhr bhu bpa bpb bpc bpe bph bpp bpr bpu bra brb bre brh brp brr bru bua bub buc bue buh bup bur buu c-- caa cab cac cae cah cap car cau cba cbb cbc cbe cbh cbp cbr cbu cca ccb ccc cce cch ccp ccr ccu ce- cea ceb cec cee ceh cep cer ceu ch- cha chb chc che chh chp chr chu cpa cpb cpc cpe cph cpp cpr cpu cra crb crc cre crh crp crr cru cua cub cuc cue cuh cup cur cuu eaa eab eac eae eah eap ear eau eba ebb ebc ebe ebh ebp ebr ebu ec- eca ecb ecc ece ech ecr ecu eea eeb eec eee eep eer eha ehb ehc ehe ehh ehp ehr ehu ep- epa epb epc epe eph epp epr epu era erb erc ere erh erp err eru eu- eua eub euc eue eup eur haa hab hac hae hah hap har hau hba hbb hbc hbe hbh hbp hbr hbu hca hcb hcc hce hch hcp hcr he- hea heb hec hee heh hep her heu hha hhb hhc hhe hhh hhp hhr hhu hpa hpb hpc hpe hph hpp hpr hpu hr- hra hrb hrc hre hrh hrp hrr hru hua hub huc hue huh hup hur huu p-p paa pab pac pae pah pap par pau pba pbb pbc pbe pbp pbr pbu pca pcb pcc pce pch pcp pcr pcu pea peb pec pee peh pep per peu pha phb phc phe php phr phu ppa ppb ppc ppe pph ppp ppr ppu pra prb prc pre prh prp prr pru pua pub puc pue puh pup pur puu ra- raa rab rac rae rah rap rar rau rba rbb rbc rbe rbh rbp rbr rbu rca rcb rcc rce rch rcp rcr rcu re- rea reb rec ree reh rep rer reu rh- rha rhb rhc rhe rhh rhp rhr rhu rpa rpb rpc rpe rph rpp rpr rpu rra rrb rrc rrh rrp rrr rru rua rub ruc rue ruh rup rur ruu ua- uaa uab uac uae uah uap uar uau uba ubb ubc ube ubh ubp ubr ubu uca ucb ucc uce uch ucp ucr ucu uea ueb uec uee ueh uep uer uha uhb uhc uhe uhh uhp uhr uhu up- upa upb upc upe uph upp upr upu ur- ura urb urc ure urp urr uru uua uuc uue uur uuu