C1111133313331323223313331333133313331323323133112111133133311231211   >>    C111113331333132322331333133313331333132332313311211113313331123121   <<    C1111133313331323223313331333133313331323323133112111133133311231213   >>      C1111133313331323223313331333133313331323323133112111133133311231212   >>