a-a a-c aaa aac aad aao aas aay ac- aca acc acd aco acs acy ad- ada adc add ado ads ady aoa aoc aod aoo aos as- asa asc asd aso ass asy ay- aya ayc ayd ayo ays c-- caa cac cad cao cas cay cca ccc ccd cco ccs cda cdc cdd cdo cds cdy co- coa coc cod coo cos coy csa csc csd cso css csy cya cyc cyd cyo cys daa dac dad dao das day dca dcc dcd dco dcs dda ddc ddd ddo dds ddy doa doc dod doo dos doy dsa dsc dsd dso dss dsy dy- dya dyc dyd dyo dys dyy oaa oac oad oao oas oc- oca occ ocd oco ocs oda odc odd odo ods oo- ooa ooc ood ooo oos os- osa osc osd oso oss oya oyd oyo oys saa sac sad sao sas say sca scc scd sco scs sda sdc sdd sdo sds sdy soa soc sod soo sos soy ss- ssa ssc ssd sso sss sy- sya syc syd sys yaa yac yad yao yas yay yca ycc ycd yco ycs ycy yda ydo yds ydy yoc yod yoo yos yoy ysa ysc yso yss ysy yyc yys yyy