C13223313311212111133133313331333133313123223313231333131333132312121   >>    C1322331331121211113313331333133313331312322331323133313133313231212   <<    C13223313311212111133133313331333133313123223313231333131333132312123   >>      C13223313311212111133133313331333133313123223313231333131333132312122   >>