D12121212121313232233132332313231323133313233313113313232211213111   >>    D1212121212131323223313233231323132313331323331311331323221121311   <<    D12121212121313232233132332313231323133313233313113313232211213113   >>      D12121212121313232233132332313231323133313233313113313232211213112   >>