C3132121111331312113313331333133313331333121111331333133313331333133112122131   >>    C313212111133131211331333133313331333133312111133133313331333133313311212213   <<    C3132121111331312113313331333133313331333121111331333133313331333133112122133   >>      C3132121111331312113313331333133313331333121111331333133313331333133112122132   >>