-er -ic a-a a-b a-c a-i aaa aab aac aad aae aah aai aan aar ab- aba abb abc abd abe abh abi abn abr ac- aca acb acc acd ace ach aci acn acr ad- ada adb adc add ade adh adi adn adr aea aeb aec aed aee aeh aei aen aer aha ahb ahc ahd ahe ahh ahi ahn ahr ai- aia aib aic aid aie aih aii ain air an- ana anb anc and ane anh ani ann anr ar- ara arb arc ard are arh ari arn arr baa bab bac bad bae bah bai ban bar bba bbb bbc bbd bbe bbh bbi bbn bbr bca bcb bcc bcd bce bch bci bcn bcr bda bdb bdc bdd bde bdh bdi bdr be- bea beb bec bed bee beh bei ben ber bha bhb bhc bhd bhe bhh bhi bhr bi- bia bib bic bid bie bih bii bin bir bna bnb bnc bnd bne bni bnn bnr bra brb brd bre brh bri brn brr c-- caa cab cac cad cae cah cai can car cba cbb cbc cbd cbe cbh cbi cbn cbr cca ccb ccc ccd cce cch cci ccn ccr cda cdb cdc cdd cde cdh cdi cdn cdr ce- cea ceb cec ced cee ceh cei cen cer ch- cha chb chc chd che chh chi chn chr ci- cia cib cic cid cie cih cii cin cir cn- cna cnb cnc cnd cne cnh cni cnn cnr cra crb crc crd cre crh cri crn crr daa dab dac dad dae dah dai dan dar dba dbb dbc dbd dbe dbh dbi dbn dbr dca dcb dcc dcd dce dci dcn dcr dda ddb ddc ddd dde ddh ddi ddn ddr de- dea deb dec ded dee deh dei den der dh- dha dhb dhc dhd dhe dhh dhi dhr di- dia dib dic did die dih dii din dir dna dnb dnc dnd dne dnh dni dnn dnr dra drb drc drd dre dri drn drr eaa eab eac ead eae eah eai ean ear eba ebb ebc ebd ebe ebh ebi ebn ebr ec- eca ecb ecc ecd ece ech eci ecn ecr ed- eda edb edc edd ede edh edi edn edr eea eeb eec eed eee een eer eha ehb ehc ehd ehe ehh ehi ehn ehr eia eib eic eid eie eii ein eir en- ena enb enc end ene enh eni enn enr era erb erc erd ere erh eri ern err h-i haa hab hac had hae hah hai han har hba hbb hbc hbd hbe hbh hbi hbn hbr hca hcb hcc hcd hce hch hci hcn hcr hda hdb hdc hdd hde hdh hdi hdn hdr he- hea heb hec hed hee heh hei hen her hha hhb hhc hhd hhe hhh hhi hhn hhr hia hib hic hid hie hih hii hin hir hna hnb hnc hnd hne hnh hnn hr- hra hrb hrc hrd hre hrh hri hrn hrr i-d ia- iaa iab iac iad iae iah iai ian iar iba ibb ibc ibd ibe ibh ibi ibn ibr ica icb icc icd ice ich ici icn icr ida idb idc idd ide idh idi idn idr ie- iea iec ied iee iei ien ier iha ihb ihc ihd ihe ihh ihi ihn ihr iia iib iic iid iie iih iii iin iir in- ina inb inc ind ine inh ini inn inr ir- ira irb irc ird ire iri irn irr n-i naa nab nac nad nae nah nai nan nar nba nbb nbc nbd nbe nbi nbn nbr nca ncb ncc ncd nce nch nci ncn ncr nda ndb ndc ndd nde ndh ndi ndn ndr ne- nea neb nec ned nee neh nei nen ner nha nhb nhc nhd nhe nhh nhi nhn nhr nia nib nic nid nie nih nii nin nir nna nnb nnc nne nnh nni nnn nra nrb nrc nrd nre nri nrn nrr ra- raa rab rac rad rae rah rai ran rar rba rbb rbc rbd rbe rbh rbi rbn rbr rca rcb rcc rcd rce rch rci rcn rcr rda rdb rdc rdd rde rdh rdi rdn rdr re- rea reb rec red ree reh rei ren rer rh- rha rhb rhc rhd rhe rhh rhi rhn rhr ria rib ric rid rie rih rii rin rir rna rnb rnc rnd rnh rni rnn rnr rra rrb rrc rrd rrh rri rrn rrr