-ic -up a-a a-b a-c a-i a-t aaa aab aac aai aao aap aar aat aau ab- aba abb abc abi abo abp abr abt abu ac- aca acb acc aci aco acp acr act acu ai- aia aib aic aii aio aip air ait aiu aoa aob aoc aoi aoo aop aor aot aou ap- apa apb apc api apo app apr apt apu ar- ara arb arc ari aro arp arr art aru at- ata atb atc ati ato atp atr att atu au- aua aub auc aui auo aup aur aut b-p b-u baa bab bac bai bao bap bar bat bau bba bbb bbc bbi bbo bbp bbr bbt bbu bca bcb bcc bci bco bcp bcr bct bcu bi- bia bib bic bii bio bip bir bit biu boa bob boc boi boo bop bor bot bou bpa bpb bpc bpi bpo bpp bpr bpt bpu bra brb bri bro brp brr brt bru bta btb btc bti bto btp btr btt btu bua bub buc bui buo bup bur but buu c-- caa cab cac cai cao cap car cat cau cba cbb cbc cbi cbo cbp cbr cbt cbu cca ccb ccc cci cco ccp ccr cct ccu ci- cia cib cic cii cio cip cir cit ciu co- coa cob coc coi coo cop cor cot cou cpa cpb cpc cpi cpo cpp cpr cpt cpu cra crb crc cri cro crp crr crt cru cta ctb ctc cti cto ctp ctr ctt ctu cua cub cuc cui cuo cup cur cut cuu ia- iaa iab iac iai iao iap iar iat iau iba ibb ibc ibi ibo ibp ibr ibt ibu ica icb icc ici ico icp icr ict icu iia iib iic iii iio iip iir iit iiu io- ioa iob ioc ioi ioo iop ior iot iou ipa ipb ipc ipi ipo ipp ipr ipt ipu ir- ira irb irc iri iro irp irr irt iru ita itb itc iti ito itp itt itu iu- iua iub iuc iui iup iur iut o-i oaa oab oac oai oao oap oar oat oau ob- oba obb obc obi obo obp obr obt obu oc- oca ocb occ oci oco ocp ocr oct ocu oia oib oic oii oio oip oir oit oiu oo- ooa oob ooc ooi ooo oop oor oot op- opa opb opc opi opo opp opr opt or- ora orb orc ori oro orp orr ort oru ot- ota otb otc oti oto otp otr ott otu ou- oua ouc oui ouo oup our out p-p paa pab pac pai pao pap par pat pau pba pbb pbc pbi pbo pbp pbr pbt pbu pca pcb pcc pci pco pcp pcr pct pcu pia pib pic pii pio pip pir pit piu poa pob poc poi poo pop por pot pou ppa ppb ppc ppi ppo ppp ppr ppt ppu pra prb prc pri pro prp prr prt pru pt- pta ptb ptc pti pto ptp ptr ptt ptu pua pub puc pui pup pur put puu ra- raa rab rac rai rao rap rar rat rau rba rbb rbc rbi rbo rbp rbr rbt rbu rca rcb rcc rci rco rcp rcr rct rcu ria rib ric rii rio rip rir rit roa rob roc roi roo rop ror rot rou rpa rpb rpc rpi rpo rpp rpr rpt rpu rra rrb rrc rri rrp rrr rrt rru rta rtb rtc rti rto rtp rtr rtt rtu rua rub ruc rui ruo rup rur rut ruu taa tab tac tai tao tap tar tat tau tba tbb tbc tbi tbo tbp tbr tbt tbu tca tcb tcc tci tco tcp tcr tct tcu tia tib tic tii tio tip tir tit tiu to- toa tob toc toi too top tor tot tou tpa tpb tpc tpi tpo tpp tpr tpt tpu tra trb trc tri tro trp trr trt tru tta ttb ttc tti tto ttp ttr ttt ttu tua tub tuc tui tuo tup tur tut tuu ua- uaa uab uac uai uao uap uar uat uau uba ubb ubc ubi ubo ubp ubr ubt ubu uca ucb ucc uci uco ucp ucr uct ucu uia uib uic uii uio uip uir uit uiu uoa uob uoc uoo uop uor uot up- upa upb upc upi upo upp upr upt upu ur- ura urb urc uri uro urp urr urt uru uta utb utc uti uto utp utr utt utu uua uuc uur uut uuu