C3123121111331312121111331333133313331331121133133313331333131122321311121   >>    C312312111133131212111133133313331333133112113313331333133313112232131112   <<    C3123121111331312121111331333133313331331121133133313331333131122321311123   >>      C3123121111331312121111331333133313331331121133133313331333131122321311122   >>