D12121212121313233313232313231323123231323223313113313232233131323132323231   >>    D1212121212131323331323231323132312323132322331311331323223313132313232323   <<    D12121212121313233313232313231323123231323223313113313232233131323132323233   >>      D12121212121313233313232313231323123231323223313113313232233131323132323232   >>