rea reb rec red ree rei rek rel rer res rev ria rib ric rid rie rii rik ril rir ris riv rkb rkc rke rkk rks rkv rla rlc rld rle rli rll rlr rls rra rrb rrc rrd rri rrk rrl rrr rrs rsa rsb rsc rsd rse rsi rsk rsl rsr rss rsv rva rvb rvc rvd rve rvi rvl rvr rvs rvv saa sab sac sad sae sai sak sal sar sas sav sba sbb sbc sbd sbe sbi sbk sbl sbr sbs sbv sca scb scc scd sce sci sck scl scr scs scv sda sdb sdc sdd sde sdi sdk sdl sdr sds sdv se- sea seb sec sed see sei sek sel ser ses sev sia sib sic sid sie sii sik sil sir sis siv sk- ska skb skc skd ske ski skk skl skr sks sla slb slc sld sle sli slk sll slr sls slv sr- sra srb src srd sre sri srk srl srr srs srv ss- ssa ssb ssc ssd sse ssi ssk ssl ssr sss ssv sva svb svc svd sve svi svk svl svr svs svv v-a v-e vaa vab vac vad vae vai vak val var vas vav vba vbc vbd vbi vbk vbl vbr vbs vbv vca vcc vcd vce vci vcl vcr vcs vdb vdc vdd vde vdi vdk vdl vdr vds vdv vea veb vec ved vee vei vek vel ver ves vi- via vib vic vid vie vii vik vil vir vis viv vka vkb vl- vla vlb vlc vld vle vlk vll vls vlv vra vrb vrc vrd vre vri vrk vrr vrs vsa vsb vsc vsd vse vsi vsk vsl vsr vss vsv vva vvb vvc vvi vvr vvs vvv

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