D23312331311331313231323223313232113313113313231322133313233221   >>    D2331233131133131323132322331323211331311331323132213331323322   <<    D23312331311331313231323223313232113313113313231322133313233223   >>      D23312331311331313231323223313232113313113313231322133313233222   >>