C3132121111133313233121111331333133313331333133313331333133313232233312131   >>    C313212111113331323312111133133313331333133313331333133313331323223331213   <<    C3132121111133313233121111331333133313331333133313331333133313232233312133   >>      C3132121111133313233121111331333133313331333133313331333133313232233312132   >>