C1111233131211111211113313231333133313331323221333133311331333132313332311   >>    C111123313121111121111331323133313331333132322133313331133133313231333231   <<    C1111233131211111211113313231333133313331323221333133311331333132313332313   >>      C1111233131211111211113313231333133313331323221333133311331333132313332312   >>