D12121212121313233313123231323223313132322331323132233132332322231   >>    D1212121212131323331312323132322331313232233132313223313233232223   <<    D12121212121313233313123231323223313132322331323132233132332322233   >>      D12121212121313233313123231323223313132322331323132233132332322232   >>