C312312111111331312111133133313331333133313231333132233131111211   >>    C31231211111133131211113313331333133313331323133313223313111121   <<    C312312111111331312111133133313331333133313231333132233131111213   >>      C312312111111331312111133133313331333133313231333132233131111212   >>