D12121212121313232233132332313231323133313233313113313232213231311211   >>    D1212121212131323223313233231323132313331323331311331323221323131121   <<    D12121212121313232233132332313231323133313233313113313232213231311213   >>      D12121212121313232233132332313231323133313233313113313232213231311212   >>