C13223313311212111133133313331333133313123223313231333132211211   >>    C1322331331121211113313331333133313331312322331323133313221121   <<    C13223313311212111133133313331333133313123223313231333132211213   >>      C13223313311212111133133313331333133313123223313231333132211212   >>