C312312111133131212111133133313231333133313331331123232133313331322233311   >>    C31231211113313121211113313331323133313331333133112323213331333132223331   <<    C312312111133131212111133133313231333133313331331123232133313331322233313   >>      C312312111133131212111133133313231333133313331331123232133313331322233312   >>