C3123121111331312121111331333132313331323221211113313113313232333132211   >>    C312312111133131212111133133313231333132322121111331311331323233313221   <<    C3123121111331312121111331333132313331323221211113313113313232333132213   >>      C3123121111331312121111331333132313331323221211113313113313232333132212   >>