D12121212121313233313232313231323123231323223313113313231323331323222331   >>    D1212121212131323331323231323132312323132322331311331323132333132322233   <<    D12121212121313233313232313231323123231323223313113313231323331323222333   >>      D12121212121313233313232313231323123231323223313113313231323331323222332   >>