-ic a-a a-b a-c a-i aaa aab aac aai aam aar aay ab- aba abb abc abi abm abr aby ac- aca acb acc aci acm acr acy ai- aia aib aic aii aim air aiy ama amb amc ami amm amr amy ar- ara arb arc ari arm arr ary ay- aya ayc ayi ayr baa bab bac bai bam bar bay bba bbb bbc bbi bbm bbr bby bca bcb bcc bci bcm bcr bcy bi- bia bib bic bii bim bir biy bma bmb bmc bmi bmm bmr bra brb bri brm brr bry by- bya byc byi bym byr c-- caa cab cac cai cam car cay cba cbb cbc cbi cbm cbr cby cca ccb ccc cci ccm ccr ci- cia cib cic cii cim cir cma cmb cmc cmi cmm cmr cmy cra crb crc cri crm crr cry cya cyb cyc cym cyr ia- iaa iab iac iai iam iar iba ibb ibc ibi ibm ibr iby ica icb icc ici icm icr icy iia iib iic iii iim iir im- ima imb imc imi imm imy ir- ira irb irc iri irm irr iry iya iyc iym iyr iyy m-r maa mab mac mai mam mar may mba mbb mbc mbi mbm mbr mc- mca mcb mcc mci mcm mcr mi- mia mib mic mii mim mir miy mma mmb mmc mmi mmm mmr mra mrb mrc mri mrm mrr mry my- mya myb myc mym myr ra- raa rab rac rai ram rar ray rba rbb rbc rbi rbm rbr rca rcb rcc rci rcm rcr ria rib ric rii rim rir riy rma rmb rmc rmi rmm rmr rra rrb rrc rri rrm rrr ry- rya ryc rym ryr ryy yaa yab yac yai yam yar yay ybc ybi ybm ybr yby yca ycc yci ycy yii yim yir yma ymc ymi ymm yra yrc yyb yyc yyy