D23312331311331313231323223313232113313113313233231333132312231   >>    D2331233131133131323132322331323211331311331323323133313231223   <<    D23312331311331313231323223313232113313113313233231333132312233   >>      D23312331311331313231323223313232113313113313233231333132312232   >>