D12121212121313233313232313231323123231313231323133313233313232233131   >>    D1212121212131323331323231323132312323131323132313331323331323223313   <<    D12121212121313233313232313231323123231313231323133313233313232233133   >>      D12121212121313233313232313231323123231313231323133313233313232233132   >>