rrc rri rrl rrm rrp rrr rrs rrt rsc rse rsi rsj rsl rsm rso rsp rsr rss rst rtc rte rti rtj rtl rtm rto rtp rtr rts rtt scc sce sci scj scl scm sco scp scr scs sct se- sec see sei sej sel sem seo sep ser ses set sic sie sii sij sil sim sio sip sir sis sit sjc sje sji sjj sjm sjp sjr sjs sjt slc sle sli slj sll slm slo slp slr sls slt smc sme smi sml smm smo smp smr sms smt soc soe soi soj sol som soo sop sor sos sot spc spe spi spl spm spo spp spr sps spt sr- src sre sri srj srl srm sro srp srr srs srt ss- ssc sse ssi ssj ssl ssm sso ssp ssr sss sst stc ste sti stj stl stm sto stp str sts stt tcc tce tci tcj tcl tcm tco tcp tcr tcs tct te- tec tee tei tej tel tem teo tep ter tes tet tic tie tii til tim tio tip tir tis tit tjc tje tji tjm tjo tjp tjr tjs tlc tle tli tlj tll tlm tlo tlp tlr tls tlt tmc tme tmi tmj tml tmm tmo tmp tmr tms tmt to- toc toe toi toj tol tom too top tor tos tot tpc tpe tpi tpj tpl tpm tpo tpp tpr tps tpt trc tre tri trl trm tro trp trr trs trt tsc tse tsi tsj tsl tsm tso tsp tsr tss tst ttc tte tti ttl ttm tto ttp ttr tts ttt