C3132121111133313233121111331333133313331333133313331333133313233232222231   >>    C313212111113331323312111133133313331333133313331333133313331323323222223   <<    C3132121111133313233121111331333133313331333133313331333133313233232222233   >>      C3132121111133313233121111331333133313331333133313331333133313233232222232   >>