-up a-a a-b a-c aaa aab aac aah aap aar aau ab- aba abb abc abh abp abr abu ac- aca acb acc ach acp acr acu aha ahb ahc ahh ahp ahr ahu ap- apa apb apc aph app apr apu ar- ara arb arc arh arp arr aru au- aua aub auc auh aup aur b-p b-u baa bab bac bah bap bar bau bba bbb bbc bbh bbp bbr bbu bca bcb bcc bch bcp bcr bcu bha bhb bhc bhh bhp bhr bhu bpa bpb bpc bph bpp bpr bpu bra brb brh brp brr bru bua bub buc buh bup bur buu c-- caa cab cac cah cap car cau cba cbb cbc cbh cbp cbr cbu cca ccb ccc cch ccp ccr ccu ch- cha chb chc chh chp chr chu cpa cpb cpc cph cpp cpr cpu cra crb crc crh crp crr cru cua cub cuc cuh cup cur cuu haa hab hac hah hap har hau hba hbb hbc hbh hbp hbr hbu hca hcb hcc hch hcp hcr hha hhb hhc hhh hhp hhr hhu hpa hpb hpc hph hpp hpr hpu hr- hra hrb hrc hrh hrp hrr hru hua hub huc huh hup hur huu p-p paa pab pac pah pap par pau pba pbb pbc pbp pbr pbu pca pcb pcc pch pcp pcr pcu pha phb phc php phr phu ppa ppb ppc pph ppp ppr ppu pra prb prc prh prp prr pru pua pub puc puh pup pur puu ra- raa rab rac rah rap rar rau rba rbb rbc rbh rbp rbr rbu rca rcb rcc rch rcp rcr rcu rh- rha rhb rhc rhh rhp rhr rhu rpa rpb rpc rph rpp rpr rpu rra rrb rrc rrh rrp rrr rru rua rub ruc ruh rup rur ruu ua- uaa uab uac uah uap uar uau uba ubb ubc ubh ubp ubr ubu uca ucb ucc uch ucp ucr ucu uha uhb uhc uhh uhp uhr uhu up- upa upb upc uph upp upr upu ur- ura urb urc urp urr uru uua uuc uur uuu