C312312111133131212111133133313331333133312133313331333132322132223112131   >>    C31231211113313121211113313331333133313331213331333133313232213222311213   <<    C312312111133131212111133133313331333133312133313331333132322132223112133   >>      C312312111133131212111133133313331333133312133313331333132322132223112132   >>