D12121212121313232233132332313231323133313233313113313233313231322131   >>    D1212121212131323223313233231323132313331323331311331323331323132213   <<    D12121212121313232233132332313231323133313233313113313233313231322133   >>      D12121212121313232233132332313231323133313233313113313233313231322132   >>