C1111133313331323223313331333133313331333232233133112111133131121131133231   >>    C111113331333132322331333133313331333133323223313311211113313112113113323   <<    C1111133313331323223313331333133313331333232233133112111133131121131133233   >>      C1111133313331323223313331333133313331333232233133112111133131121131133232   >>