C13223313311212111133133313331323133313331323131133131122233121   >>    C1322331331121211113313331333132313331333132313113313112223312   <<    C13223313311212111133133313331323133313331323131133131122233123   >>      C13223313311212111133133313331323133313331323131133131122233122   >>