C11112331312111112111133133313331333132322121111331323222211111   >>    C1111233131211111211113313331333133313232212111133132322221111   <<    C11112331312111112111133133313331333132322121111331323222211113   >>      C11112331312111112111133133313331333132322121111331323222211112   >>