raa rac rad rah rai ral rao rap rar ras rat rca rcc rcd rch rci rcl rco rcp rcr rcs rct rda rdc rdd rdh rdi rdl rdo rdp rdr rds rdt rh- rha rhc rhd rhh rhi rhl rho rhp rhr rhs rht ria ric rid rih rii ril rio rip rir ris rit rla rlc rld rlh rli rll rlo rlp rlr rls rlt roa roc rod roh roi rol roo rop ror ros rot rpa rpc rpd rph rpi rpl rpo rpp rpr rps rpt rra rrc rrd rrh rri rrl rrp rrr rrs rrt rsa rsc rsd rsh rsi rsl rso rsp rsr rss rst rta rtc rtd rti rtl rto rtp rtr rts rtt saa sac sad sah sai sal sao sap sar sas sat sca scc scd sch sci scl sco scp scr scs sct sda sdc sdd sdh sdi sdl sdo sdp sdr sds sdt sh- sha shc shd shh shi shl sho shp shr shs sht sia sic sid sih sii sil sio sip sir sis sit sla slc sld slh sli sll slo slp slr sls slt soa soc sod soh soi sol soo sop sor sos sot spa spc spd sph spi spl spo spp spr sps spt sr- sra src srd srh sri srl sro srp srr srs srt ss- ssa ssc ssd ssh ssi ssl sso ssp ssr sss sst sta stc std sth sti stl sto stp str sts stt taa tac tad tah tai tal tao tap tar tas tat tca tcc tcd tch tci tcl tco tcp tcr tcs tct tda tdc tdd tdh tdi tdl tdo tdp tdr tds tdt th- tha thc thd thh thi thl tho thp thr ths tht tia tic tid tih tii til tio tip tir tis tit tla tlc tld tlh tli tll tlo tlp tlr tls tlt to- toa toc tod toh toi tol too top tor tos tot tpa tpc tpd tph tpi tpl tpo tpp tpr tps tpt tra trc trd trh tri trl tro trp trr trs trt tsa tsc tsd tsh tsi tsl tso tsp tsr tss tst tta ttc ttd tth tti ttl tto ttp ttr tts ttt