D121213233313132233132333131313231333132333131323331323223311211321   >>    D12121323331313223313233313131323133313233313132333132322331121132   <<    D121213233313132233132333131313231333132333131323331323223311211323   >>      D121213233313132233132333131313231333132333131323331323223311211322   >>