C3123121111331312121111331333132313331333133313311213331322233111   >>    C312312111133131212111133133313231333133313331331121333132223311   <<    C3123121111331312121111331333132313331333133313311213331322233113   >>      C3123121111331312121111331333132313331333133313311213331322233112   >>