D233313133313221323132333131313231313331323331323132233132211231   >>    D23331313331322132313233313131323131333132333132313223313221123   <<    D233313133313221323132333131313231313331323331323132233132211233   >>      D233313133313221323132333131313231313331323331323132233132211232   >>