D12121212121313233313123231323223313132322331323132233133313132333123231   >>    D1212121212131323331312323132322331313232233132313223313331313233312323   <<    D12121212121313233313123231323223313132322331323132233133313132333123233   >>      D12121212121313233313123231323223313132322331323132233133313132333123232   >>