rrh rri rrk rrr rrs rrt rsc rse rsf rsg rsh rsi rsk rso rsr rss rst rtc rte rtf rtg rti rtk rto rtr rts rtt scc sce scf scg sch sci sck sco scr scs sct se- sec see sef seg seh sei sek seo ser ses set sfc sfe sff sfg sfh sfi sfk sfo sfr sfs sft sgc sge sgf sgg sgh sgi sgk sgo sgr sgs sgt sh- shc she shf shg shh shi shk sho shr shs sht sic sie sif sig sih sii sik sio sir sis sit sk- skc ske skf skg skh ski skk sko skr sks skt soc soe sof sog soh soi sok soo sor sos sot sr- src sre srf srg srh sri srk sro srr srs srt ss- ssc sse ssf ssg ssh ssi ssk sso ssr sss sst stc ste stf stg sth sti stk sto str sts stt tcc tce tcf tcg tch tci tck tco tcr tcs tct te- tec tee tef teg teh tei tek teo ter tes tet tfc tfe tff tfg tfh tfi tfk tfo tfr tfs tft tgc tge tgf tgg tgh tgi tgk tgo tgr tgs tgt th- thc the thf thg thh thi thk tho thr ths tht tic tie tif tig tih tii tik tio tir tis tit tkc tke tkg tkk tko tkr tks tkt to- toc toe tof tog toh toi tok too tor tos tot trc tre trf trg trh tri trk tro trr trs trt tsc tse tsf tsg tsh tsi tsk tso tsr tss tst ttc tte ttf ttg tth tti ttk tto ttr tts ttt