D12121212121313232233132332313231323133313233313113313232211331   >>    D1212121212131323223313233231323132313331323331311331323221133   <<    D12121212121313232233132332313231323133313233313113313232211333   >>      D12121212121313232233132332313231323133313233313113313232211332   >>