C13223313311212111133133313331333133313123223313231333131312321   >>    C1322331331121211113313331333133313331312322331323133313131232   <<    C13223313311212111133133313331333133313123223313231333131312323   >>      C13223313311212111133133313331333133313123223313231333131312322   >>