-ic a-a a-b a-c a-i aaa aab aac aad aai aar aay ab- aba abb abc abd abi abr aby ac- aca acb acc acd aci acr acy ad- ada adb adc add adi adr ady ai- aia aib aic aid aii air aiy ar- ara arb arc ard ari arr ary ay- aya ayc ayd ayi ayr baa bab bac bad bai bar bay bba bbb bbc bbd bbi bbr bby bca bcb bcc bcd bci bcr bcy bda bdb bdc bdd bdi bdr bdy bi- bia bib bic bid bii bir biy bra brb brd bri brr bry by- bya byc byd byi byr c-- caa cab cac cad cai car cay cba cbb cbc cbd cbi cbr cby cca ccb ccc ccd cci ccr cda cdb cdc cdd cdi cdr cdy ci- cia cib cic cid cii cir cra crb crc crd cri crr cry cya cyb cyc cyd cyr daa dab dac dad dai dar day dba dbb dbc dbd dbi dbr dby dca dcb dcc dcd dci dcr dda ddb ddc ddd ddi ddr ddy di- dia dib dic did dii dir diy dra drb drc drd dri drr dry dy- dya dyb dyc dyd dyr dyy i-d ia- iaa iab iac iad iai iar iba ibb ibc ibd ibi ibr iby ica icb icc icd ici icr icy ida idb idc idd idi idr idy iia iib iic iid iii iir ir- ira irb irc ird iri irr iry iya iyc iyr iyy ra- raa rab rac rad rai rar ray rba rbb rbc rbd rbi rbr rca rcb rcc rcd rci rcr rda rdb rdc rdd rdi rdr rdy ria rib ric rid rii rir riy rra rrb rrc rrd rri rrr ry- rya ryc ryd ryr ryy yaa yab yac yad yai yar yay ybc ybi ybr yby yca ycc ycd yci ycy yda ydy yid yii yir yra yrc yyb yyc yyy