C3123121111113313121111331333133313331333223313231333132213331312232131   >>    C312312111111331312111133133313331333133322331323133313221333131223213   <<    C3123121111113313121111331333133313331333223313231333132213331312232133   >>      C3123121111113313121111331333133313331333223313231333132213331312232132   >>