C111123313121111121111331333132313331333133112213331323133312231   >>    C11112331312111112111133133313231333133313311221333132313331223   <<    C111123313121111121111331333132313331333133112213331323133312233   >>      C111123313121111121111331333132313331333133112213331323133312232   >>