-er -ic a-a a-b a-c a-i aaa aab aac aad aae aah aai aao aap aar ab- aba abb abc abd abe abh abi abo abp abr ac- aca acb acc acd ace ach aci aco acp acr ad- ada adb adc add ade adh adi ado adp adr aea aeb aec aed aee aeh aei aeo aep aer aha ahb ahc ahd ahe ahh ahi aho ahp ahr ai- aia aib aic aid aie aih aii aio aip air aoa aob aoc aod aoe aoh aoi aoo aop aor ap- apa apb apc apd ape aph api apo app apr ar- ara arb arc ard are arh ari aro arp arr b-p baa bab bac bad bae bah bai bao bap bar bba bbb bbc bbd bbe bbh bbi bbo bbp bbr bca bcb bcc bcd bce bch bci bco bcp bcr bda bdb bdc bdd bde bdh bdi bdo bdp bdr be- bea beb bec bed bee beh bei beo bep ber bha bhb bhc bhd bhe bhh bhi bho bhp bhr bi- bia bib bic bid bie bih bii bio bip bir boa bob boc bod boe boh boi boo bop bor bpa bpb bpc bpd bpe bph bpi bpo bpp bpr bra brb brd bre brh bri bro brp brr c-- caa cab cac cad cae cah cai cao cap car cba cbb cbc cbd cbe cbh cbi cbo cbp cbr cca ccb ccc ccd cce cch cci cco ccp ccr cda cdb cdc cdd cde cdh cdi cdo cdp cdr ce- cea ceb cec ced cee ceh cei ceo cep cer ch- cha chb chc chd che chh chi cho chp chr ci- cia cib cic cid cie cih cii cio cip cir co- coa cob coc cod coe coh coi coo cop cor cpa cpb cpc cpd cpe cph cpi cpo cpp cpr cra crb crc crd cre crh cri cro crp crr daa dab dac dad dae dah dai dao dap dar dba dbb dbc dbd dbe dbh dbi dbo dbp dbr dca dcb dcc dcd dce dci dco dcp dcr dda ddb ddc ddd dde ddh ddi ddo ddp ddr de- dea deb dec ded dee deh dei deo dep der dh- dha dhb dhc dhd dhe dhh dhi dho dhp dhr di- dia dib dic did die dih dii dio dip dir doa dob doc dod doe doh doi doo dop dor dpa dpb dpc dpd dpe dph dpi dpo dpp dpr dra drb drc drd dre dri dro drp drr eaa eab eac ead eae eah eai eao eap ear eba ebb ebc ebd ebe ebh ebi ebo ebp ebr ec- eca ecb ecc ecd ece ech eci eco ecr ed- eda edb edc edd ede edh edi edo edp edr eea eeb eec eed eee eeo eep eer eha ehb ehc ehd ehe ehh ehi eho ehp ehr eia eib eic eid eie eii eio eip eir eo- eoa eob eoc eod eoe eoh eoi eoo eop eor ep- epa epb epc epd epe eph epi epo epp epr era erb erc erd ere erh eri ero erp err h-i haa hab hac had hae hah hai hao hap har hba hbb hbc hbd hbe hbh hbi hbo hbp hbr hca hcb hcc hcd hce hch hci hco hcp hcr hda hdb hdc hdd hde hdh hdi hdo hdp hdr he- hea heb hec hed hee heh hei heo hep her hha hhb hhc hhd hhe hhh hhi hho hhp hhr hia hib hic hid hie hih hii hio hip hir hoa hob hoc hod hoe hoh hoi hoo hop hor hpa hpb hpc hpd hpe hph hpi hpo hpp hpr hr- hra hrb hrc hrd hre hrh hri hro hrp hrr i-d ia- iaa iab iac iad iae iah iai iao iap iar iba ibb ibc ibd ibe ibh ibi ibo ibp ibr ica icb icc icd ice ich ici ico icp icr ida idb idc idd ide idh idi ido idp idr ie- iea iec ied iee iei iep ier iha ihb ihc ihd ihe ihh ihi iho ihp ihr iia iib iic iid iie iih iii iio iip iir io- ioa iob ioc iod ioe ioh ioi ioo iop ior ipa ipb ipc ipd ipe ipi ipo ipp ipr ir- ira irb irc ird ire iri iro irp irr o-i oaa oab oac oad oae oah oai oao oap oar ob- oba obb obc obd obe obh obi obo obp obr oc- oca ocb occ ocd och oci oco ocp ocr oda odb odc odd ode odh odi odo odp odr oea oeb oec oed oee oeh oei oeo oep oer oha ohc ohd ohe ohh ohi oho ohp ohr oia oib oic oid oie oii oio oip oir oo- ooa oob ooc ood ooh ooi ooo oop oor op- opa opb opc opd ope oph opi opo opp opr or- ora orb orc ord ore orh ori oro orp orr p-p paa pab pac pad pae pah pai pao pap par pba pbb pbc pbd pbe pbi pbo pbp pbr pca pcb pcc pcd pce pch pci pco pcp pcr pda pdb pdc pdd pde pdh pdi pdo pdp pdr pea peb pec ped pee peh pei peo pep per pha phb phc phd phe phi pho php phr pia pib pic pid pie pih pii pio pip pir poa pob poc pod poe poh poi poo pop por ppa ppb ppc ppd ppe pph ppi ppo ppp ppr pra prb prc prd pre prh pri pro prp prr ra- raa rab rac rad rae rah rai rao rap rar rba rbb rbc rbd rbe rbh rbi rbo rbp rbr rca rcb rcc rcd rce rch rci rco rcp rcr rda rdb rdc rdd rde rdh rdi rdo rdp rdr re- rea reb rec red ree reh rei reo rep rer rh- rha rhb rhc rhd rhe rhh rhi rho rhp rhr ria rib ric rid rie rih rii rio rip rir roa rob roc