c-- ccc ccd cce ccf cch cco ccs cdc cdd cde cdf cdh cdo cds ce- cec ced cee cef ceh ceo ces cfc cfd cfe cff cfh cfo cfs ch- chc chd che chf chh cho chs co- coc cod coe cof coh coo cos csc csd cse csf csh cso css dcc dcd dce dcf dco dcs ddc ddd dde ddf ddh ddo dds de- dec ded dee def deh deo des dfc dfd dfe dff dfh dfo dfs dh- dhc dhd dhe dhf dhh dho dhs doc dod doe dof doh doo dos dsc dsd dse dsf dsh dso dss ec- ecc ecd ece ecf ech eco ecs ed- edc edd ede edf edh edo eds eec eed eee eef eeo ees ef- efc efd efe eff efh efo efs ehc ehd ehe ehf ehh eho ehs eo- eoc eod eoe eof eoh eoo eos es- esc esd ese esf esh eso ess fcc fcd fce fcf fco fcs fdc fdd fde fdf fdh fdo fds fec fed fee fef feh feo fes ffc ffd ffe fff ffh ffo ffs fhc fhe fhf fhh fho fhs foc foe fof foh foo fos fsc fsd fse fsf fsh fso fss hcc hcd hce hcf hch hco hcs hdc hdd hde hdf hdh hdo hds he- hec hed hee hef heh heo hes hfc hfd hfe hff hfh hfo hfs hhc hhd hhe hhf hhh hho hhs hoc hod hoe hof hoh hoo hos hsc hsd hse hsf hsh hss oc- occ ocd ocf och oco ocs odc odd ode odf odh odo ods oec oed oee oef oeh oeo oes of- ofc ofd ofe off ofo ofs ohc ohd ohe ohf ohh oho ohs oo- ooc ood oof ooh ooo oos os- osc osd ose osf osh oso oss scc scd sce scf sch sco scs sdc sdd sde sdf sdh sdo sds se- sec sed see sef seh seo ses sfc sfd sfe sff sfh sfo sfs sh- shc shd she shf shh sho shs soc sod soe sof soh soo sos ss- ssc ssd sse ssf ssh sso sss