nr    ns  anzxzxoo   xxrsrn         ec   rasmeu  

  ir  uc      ee     rx    vi        io  wv    vv 

   xcvw       wo     um              nx  nm       

    ww        ax      x=x=rc         ==  zx       

    mc        e=           =x  cz    =w  xs       

    in        ux     eu    =m  mx    xa  rz    zo 

    uc        we      mirmcx    caurvm    wrrcro