C13223313311212111133133313331333133313123223313231333133313231312231   >>    C1322331331121211113313331333133313331312322331323133313331323131223   <<    C13223313311212111133133313331333133313123223313231333133313231312233   >>      C13223313311212111133133313331333133313123223313231333133313231312232   >>