C3123121111331312121111331333132313331333133313233313121133132322233111   >>    C312312111133131212111133133313231333133313331323331312113313232223311   <<    C3123121111331312121111331333132313331333133313233313121133132322233113   >>      C3123121111331312121111331333132313331333133313233313121133132322233112   >>