C11111333133313232233133313331333133313231322321111331311331323311221   >>    C1111133313331323223313331333133313331323132232111133131133132331122   <<    C11111333133313232233133313331333133313231322321111331311331323311223   >>      C11111333133313232233133313331333133313231322321111331311331323311222   >>