C11111333133313232233133313331333133313331311331333133313311233321   >>    C1111133313331323223313331333133313331333131133133313331331123332   <<    C11111333133313232233133313331333133313331311331333133313311233323   >>      C11111333133313232233133313331333133313331311331333133313311233322   >>