C3132121111331312113313331333133313113313331333132322331311331323123121   >>    C313212111133131211331333133313331311331333133313232233131133132312312   <<    C3132121111331312113313331333133313113313331333132322331311331323123123   >>      C3132121111331312113313331333133313113313331333132322331311331323123122   >>