C1111133313331323223313331333133313331333232233133112111112213231211   >>    C111113331333132322331333133313331333133323223313311211111221323121   <<    C1111133313331323223313331333133313331333232233133112111112213231213   >>      C1111133313331323223313331333133313331333232233133112111112213231212   >>