cm    rv     v=u      xccwmum   isiavmvx   aa     um 

  vz  w=     nn su    si     ie  nr     rc  nze   uai 

   sxrc     rr   =c   oo     vw  mr     xm  eezw evrz 

    cx     is     o=  w=     ma  sr     rn  =u eew vm 

    ua     aririwava  aw     ca  ar     eo  em     =w 

    nc     x=     za  ie     m=  zz     nr  uu     ao 

    sm     vx     c=   svcumo=   =nxurzma   =c     rv