-ic a-a a-c a-i aaa aac aad aai aak aar aas ac- aca acc acd aci ack acr acs ad- ada adc add adi adk adr ads ai- aia aic aid aii aik air ais aka akc akd aki akk akr aks ar- ara arc ard ari ark arr ars as- asa asc asd asi ask asr ass c-- caa cac cad cai cak car cas cca ccc ccd cci cck ccr ccs cda cdc cdd cdi cdk cdr cds ci- cia cic cid cii cik cir cis cka ckc ckd cki cks cra crc crd cri crk crr crs csa csc csd csi csk csr css daa dac dad dai dak dar das dca dcc dcd dci dck dcr dcs dda ddc ddd ddi ddk ddr dds di- dia dic did dii dik dir dis dka dkc dki dkk dkr dks dra drc drd dri drk drr drs dsa dsc dsd dsi dsk dsr dss i-d ia- iaa iac iad iai iar ias ica icc icd ici ick icr ics ida idc idd idi idk idr ids iia iic iid iii iir iis ika ikc iki ikk ikr iks ir- ira irc ird iri irk irr irs is- isa isc isd isi isk isr iss ka- kaa kac kad kai kak kar kas kca kcc kcd kci kck kcr kcs kda kdc kdk kdr kds kia kic kid kii kik kir kis kkc kki kkk kkr kks kra krc krd kri krk krr krs ksa ksc ksd ksi ksk ksr kss ra- raa rac rad rai rak rar ras rca rcc rcd rci rcr rcs rda rdc rdd rdi rdr rds ria ric rid rii rik rir ris rkc rkk rks rra rrc rrd rri rrk rrr rrs rsa rsc rsd rsi rsk rsr rss saa sac sad sai sak sar sas sca scc scd sci sck scr scs sda sdc sdd sdi sdk sdr sds sia sic sid sii sik sir sis sk- ska skc skd ski skk skr sks sr- sra src srd sri srk srr srs ss- ssa ssc ssd ssi ssk ssr sss