C13223313311212111133133313331323133313331323121211111211212331   >>    C1322331331121211113313331333132313331333132312121111121121233   <<    C13223313311212111133133313331323133313331323121211111211212333   >>      C13223313311212111133133313331323133313331323121211111211212332   >>