C13223313311212111133133313331323133313331323121211113313111312311   >>    C1322331331121211113313331333132313331333132312121111331311131231   <<    C13223313311212111133133313331323133313331323121211113313111312313   >>      C13223313311212111133133313331323133313331323121211113313111312312   >>