D121213233313223313111323131323132333132333133313132321233132333131232321   >>    D12121323331322331311132313132313233313233313331313232123313233313123232   <<    D121213233313223313111323131323132333132333133313132321233132333131232323   >>      D121213233313223313111323131323132333132333133313132321233132333131232322   >>