bbb bbm bbr bbs bbx bmb bmm bmr bms bmx brb brm brr brs brx bsb bsm bsr bss bsx bxb bxm bxx m-r mbb mbm mbr mbs mbx mmb mmm mmr mms mmx mrb mrm mrr mrs mrx msb msm msr mss msx mxr mxs rbb rbm rbr rbs rbx rmb rmm rmr rms rmx rrb rrm rrr rrs rsb rsm rsr rss rsx rxr rxs sbb sbm sbr sbs sbx smb smm smr sms smx sr- srb srm srr srs srx ss- ssb ssm ssr sss ssx sxm sxs xbr xbx xmm xmr xms xmx xrx xsb xsm xss xxx

bbbb bbbs brrm brrr brrs brsb brsr bsms bsrm bssm mbbs mbms mbrs mmmm mmms mmxx mrbb mrbm mrbs msmb msmm msms msrb mssm mssr rbbb rbbr rbbs rbms rbmx rbss rmbs rrrr rsmx sbbs smss ssbr ssrm ssrs sssb sssm ssss xmms xxxx

brmmm brrrr mmmmm sssrb sssss xbxrx

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