D23312331311331313231323223313232113313113313231322133313231231231   >>    D2331233131133131323132322331323211331311331323132213331323123123   <<    D23312331311331313231323223313232113313113313231322133313231231233   >>      D23312331311331313231323223313232113313113313231322133313231231232   >>