C13223313311212111133133313331323133313331323121111331311112211   >>    C1322331331121211113313331333132313331333132312111133131111221   <<    C13223313311212111133133313331323133313331323121111331311112213   >>      C13223313311212111133133313331323133313331323121111331311112212   >>