-ol c-- ccc ccd ccf cch ccl cco ccs cdc cdd cdf cdh cdl cdo cds cfc cfd cff cfh cfl cfo cfs ch- chc chd chf chh chl cho chs cl- clc cld clf clh cll clo cls co- coc cod cof coh col coo cos csc csd csf csh csl cso css dcc dcd dcf dcl dco dcs ddc ddd ddf ddh ddl ddo dds dfc dfd dff dfh dfl dfo dfs dh- dhc dhd dhf dhh dhl dho dhs dl- dlc dld dlf dlh dll dlo dls doc dod dof doh dol doo dos dsc dsd dsf dsh dsl dso dss fcc fcd fcf fcl fco fcs fdc fdd fdf fdh fdl fdo fds ffc ffd fff ffh ffl ffo ffs fhc fhf fhh fhl fho fhs flc fld flf fll flo fls foc fof foh fol foo fos fsc fsd fsf fsh fsl fso fss hcc hcd hcf hch hcl hco hcs hdc hdd hdf hdh hdl hdo hds hfc hfd hff hfh hfl hfo hfs hhc hhd hhf hhh hhl hho hhs hlc hld hlf hlh hll hlo hls hoc hod hof hoh hol hoo hos hsc hsd hsf hsh hsl hss lcc lcd lcf lch lcl lco lcs ldc ldd ldf ldh ldl ldo lds lfc lfd lff lfh lfl lfo lfs lhc lhd lhf lhh lho lhs llc lld llf lll llo lls loc lod lof loh lol loo los lsc lsd lsf lsh lsl lso lss oc- occ ocd ocf och ocl oco ocs odc odd odf odh odl odo ods of- ofc ofd off ofl ofo ofs ohc ohd ohf ohh ohl oho ohs olc old olf oll olo ols oo- ooc ood oof ooh ool ooo oos os- osc osd osf osh osl oso oss scc scd scf sch scl sco scs sdc sdd sdf sdh sdl sdo sds sfc sfd sff sfh sfl sfo sfs sh- shc shd shf shh shl sho shs slc sld slf slh sll slo sls soc sod sof soh sol soo sos ss- ssc ssd ssf ssh ssl sso sss