-er -ic a-a a-c a-i aaa aac aae aag aah aai aao aar ac- aca acc ace acg ach aci aco acr aea aec aee aeg aeh aei aeo aer ag- aga agc age agg agh agi ago agr aha ahc ahe ahg ahh ahi aho ahr ai- aia aic aie aig aih aii aio air aoa aoc aoe aog aoh aoi aoo aor ar- ara arc are arg arh ari aro arr c-- caa cac cae cag cah cai cao car cca ccc cce ccg cch cci cco ccr ce- cea cec cee ceg ceh cei ceo cer cga cgc cge cgg cgh cgi cgo cgr ch- cha chc che chg chh chi cho chr ci- cia cic cie cig cih cii cio cir co- coa coc coe cog coh coi coo cor cra crc cre crg crh cri cro crr eaa eac eae eag eah eai eao ear ec- eca ecc ece ecg ech eci eco ecr eea eec eee eeg eeo eer ega egc ege egg egh egi ego egr eha ehc ehe ehg ehh ehi eho ehr eia eic eie eig eii eio eir eo- eoa eoc eoe eog eoh eoi eoo eor era erc ere erg erh eri ero err gaa gac gae gag gah gai gao gar gca gcc gce gcg gch gci gco gcr ge- gea gec gee geg geh gei geo ger gga ggc ggg ggh ggi ggo ggr gha ghc ghe ghg ghh ghi gho ghr gia gic gie gig gih gii gio gir goa goc goe gog goh goi goo gor gra grc gre grg grh gri gro grr h-i haa hac hae hag hah hai hao har hca hcc hce hcg hch hci hco hcr he- hea hec hee heg heh hei heo her hga hgc hge hgg hgh hgi hgo hgr hha hhc hhe hhg hhh hhi hho hhr hia hic hie hig hih hii hio hir hoa hoc hoe hog hoh hoi hoo hor hr- hra hrc hre hrg hrh hri hro hrr ia- iaa iac iae iag iah iai iao iar ica icc ice icg ich ici ico icr ie- iea iec iee ieg iei ier iga igc ige igg igh igi igo igr iha ihc ihe ihg ihh ihi iho ihr iia iic iie iih iii iio iir io- ioa ioc ioe iog ioh ioi ioo ior ir- ira irc ire irg iri iro irr o-i oaa oac oae oag oah oai oao oar oc- oca occ ocg och oci oco ocr oea oec oee oeg oeh oei oeo oer oga ogc oge ogg ogh ogi ogo oha ohc ohe ohg ohh ohi oho ohr oia oic oie oii oio oir oo- ooa ooc oog ooh ooi ooo oor or- ora orc ore org orh ori oro orr ra- raa rac rae rag rah rai rao rar rca rcc rce rcg rch rci rco rcr re- rea rec ree reg reh rei reo rer rga rgc rge rgg rgh rgi rgo rgr rh- rha rhc rhe rhg rhh rhi rho rhr ria ric rie rig rih rii rio rir roa roc roe rog roh roi roo ror rra rrc rrg rrh rri rrr