D12121212121313233313123231323223313132322331323223313113313231133132312111   >>    D1212121212131323331312323132322331313232233132322331311331323113313231211   <<    D12121212121313233313123231323223313132322331323223313113313231133132312113   >>      D12121212121313233313123231323223313132322331323223313113313231133132312112   >>