C312312111133131212111133133313231333133313331323222313223133311   >>    C31231211113313121211113313331323133313331333132322231322313331   <<    C312312111133131212111133133313231333133313331323222313223133313   >>      C312312111133131212111133133313231333133313331323222313223133312   >>