D121213233313223313111323131323132333132333133313132311221123113221   >>    D12121323331322331311132313132313233313233313331313231122112311322   <<    D121213233313223313111323131323132333132333133313132311221123113223   >>      D121213233313223313111323131323132333132333133313132311221123113222   >>