C13112133313331323321333133313331333133313331333133313331312111111211312331   >>    C1311213331333132332133313331333133313331333133313331333131211111121131233   <<    C13112133313331323321333133313331333133313331333133313331312111111211312333   >>      C13112133313331323321333133313331333133313331333133313331312111111211312332   >>