D23312331311331313231323223313232113313113313233231333132223221   >>    D2331233131133131323132322331323211331311331323323133313222322   <<    D23312331311331313231323223313232113313113313233231333132223223   >>      D23312331311331313231323223313232113313113313233231333132223222   >>