C1111133313331323223313331333133313331323323133112111133133321233133313231231   >>    C111113331333132322331333133313331333132332313311211113313332123313331323123   <<    C1111133313331323223313331333133313331323323133112111133133321233133313231233   >>      C1111133313331323223313331333133313331323323133112111133133321233133313231232   >>