C3132121111133313233121111331333133313331333133313331333133313221333132223131   >>    C313212111113331323312111133133313331333133313331333133313331322133313222313   <<    C3132121111133313233121111331333133313331333133313331333133313221333132223133   >>      C3132121111133313233121111331333133313331333133313331333133313221333132223132   >>