D12121212121313232233132332313231323133313233313113313232213231323123221   >>    D1212121212131323223313233231323132313331323331311331323221323132312322   <<    D12121212121313232233132332313231323133313233313113313232213231323123223   >>      D12121212121313232233132332313231323133313233313113313232213231323123222   >>