m-o m-r mmm mmn mmo mmr mms mmx mnm mnn mno mnr mns mom mon moo mor mos mox moy mrm mrn mro mrr mrs mrx mry msm msn mso msr mss msx msy mxn mxr mxs my- mym myn myo myr mys myx nmm nmn nmo nmr nms nnm nnn nno nns no- nom non noo nor nos nox noy nrm nrn nro nrr nrs nrx nry nsm nsn nso nsr nss nsx nsy nym nyn nyo nys nyx nyy om- omm omn omo omr oms omx omy on- onn ono onr ons onx ony oo- oom oon ooo oor oos oox or- orm orn oro orr ors orx ory os- osm osn oso osr oss osx ox- oxn oxo oxx oxy oyo oys rmm rmn rmo rmr rms rmx rnm rnn rno rnr rns rny rom ron roo ror ros rox roy rrm rrn rrr rrs rsm rsn rso rsr rss rsx rxr rxs ry- rym ryn ryo ryr rys ryy smm smn smo smr sms smx smy snm snn sno snr sns sny som son soo sor sos sox soy sr- srm srn sro srr srs srx sry ss- ssm ssn sso ssr sss ssx sxm sxn sxs sy- sym syn syr sys syx xmm xmo xmr xms xmx xno xns xom xon xoo xor xos xox xrx xry xsm xss xxo xxx xxy xyr xyy ymm ymo yms ynn yns yny yom yon yoo yor yos yox yoy yrn yro yrs ysm yso ysr yss ysy yxy yys yyy