C3132121111133313233121111331333133313331333133313331333133311221123232223111   >>    C313212111113331323312111133133313331333133313331333133313331122112323222311   <<    C3132121111133313233121111331333133313331333133313331333133311221123232223113   >>      C3132121111133313233121111331333133313331333133313331333133311221123232223112   >>