C3123121111113313121111331333132313331333131212111112213331323223311321   >>    C312312111111331312111133133313231333133313121211111221333132322331132   <<    C3123121111113313121111331333132313331333131212111112213331323223311323   >>      C3123121111113313121111331333132313331333131212111112213331323223311322   >>