D1313331322132333132333131311331323331323132233132333132321133132322231   >>    D131333132213233313233313131133132333132313223313233313232113313232223   <<    D1313331322132333132333131311331323331323132233132333132321133132322233   >>      D1313331322132333132333131311331323331323132233132333132321133132322232   >>