C3132121111133313233121111331333133313331312121111331333133112213232213131   >>    C313212111113331323312111133133313331333131212111133133313311221323221313   <<    C3132121111133313233121111331333133313331312121111331333133112213232213133   >>      C3132121111133313233121111331333133313331312121111331333133112213232213132   >>