C3123121111331312121111331333132313331333133313232212111133313231231   >>    C312312111133131212111133133313231333133313331323221211113331323123   <<    C3123121111331312121111331333132313331333133313232212111133313231233   >>      C3123121111331312121111331333132313331333133313232212111133313231232   >>