C11112331312111112111133133313331333132323213331333132311313211331   >>    C1111233131211111211113313331333133313232321333133313231131321133   <<    C11112331312111112111133133313331333132323213331333132311313211333   >>      C11112331312111112111133133313331333132323213331333132311313211332   >>