C3132121111133313233121111331333133313331333133313331333133313233232223131   >>    C313212111113331323312111133133313331333133313331333133313331323323222313   <<    C3132121111133313233121111331333133313331333133313331333133313233232223133   >>      C3132121111133313233121111331333133313331333133313331333133313233232223132   >>