-er -up a-a a-c aaa aac aad aae aap aar aas aau ac- aca acc acd ace acp acr acs acu ad- ada adc add ade adp adr ads adu aea aec aed aee aep aer aes aeu ap- apa apc apd ape app apr aps apu ar- ara arc ard are arp arr ars aru as- asa asc asd ase asp asr ass asu au- aua auc aud aue aup aur aus c-- caa cac cad cae cap car cas cau cca ccc ccd cce ccp ccr ccs ccu cda cdc cdd cde cdp cdr cds cdu ce- cea cec ced cee cep cer ces ceu cpa cpc cpd cpe cpp cpr cps cpu cra crc crd cre crp crr crs cru csa csc csd cse csp csr css csu cua cuc cud cue cup cur cus cuu daa dac dad dae dap dar das dau dca dcc dcd dce dcp dcr dcs dcu dda ddc ddd dde ddp ddr dds ddu de- dea dec ded dee dep der des deu dpa dpc dpd dpe dpp dpr dps dpu dra drc drd dre drp drr drs dru dsa dsc dsd dse dsp dsr dss dsu dua duc dud due dup dur dus eaa eac ead eae eap ear eas eau ec- eca ecc ecd ece ecr ecs ecu ed- eda edc edd ede edp edr eds edu eea eec eed eee eep eer ees ep- epa epc epd epe epp epr eps epu era erc erd ere erp err ers eru es- esa esc esd ese esp esr ess esu eu- eua euc eud eue eup eur eus p-p paa pac pad pae pap par pas pau pca pcc pcd pce pcp pcr pcs pcu pda pdc pdd pde pdp pdr pds pdu pea pec ped pee pep per pes peu ppa ppc ppd ppe ppp ppr pps ppu pra prc prd pre prp prr prs pru ps- psa psc psd pse psp psr pss psu pua puc pud pue pup pur pus puu ra- raa rac rad rae rap rar ras rau rca rcc rcd rce rcp rcr rcs rcu rda rdc rdd rde rdp rdr rds rdu re- rea rec red ree rep rer res reu rpa rpc rpd rpe rpp rpr rps rpu rra rrc rrd rrp rrr rrs rru rsa rsc rsd rse rsp rsr rss rsu rua ruc rud rue rup rur rus ruu saa sac sad sae sap sar sas sau sca scc scd sce scp scr scs scu sda sdc sdd sde sdp sdr sds sdu se- sea sec sed see sep ser ses seu spa spc spd spe spp spr sps spu sr- sra src srd sre srp srr srs ss- ssa ssc ssd sse ssp ssr sss ssu sua suc sud sue sup sur sus suu ua- uaa uac uad uae uap uar uas uau uca ucc ucd uce ucp ucr ucs ucu uda udc udd ude udp udr uds udu uea uec ued uee uep uer ues up- upa upc upd upe upp upr ups upu ur- ura urc urd ure urp urr urs uru usa usc usd use usp usr uss usu uua uuc uue uur uus uuu