C3123121111331311213331333131133133313331333133313331331123311311   >>    C312312111133131121333133313113313331333133313331333133112331131   <<    C3123121111331311213331333131133133313331333133313331331123311313   >>      C3123121111331311213331333131133133313331333133313331331123311312   >>