C13223313311212111133133313331333132333133313331323133112213221211   >>    C1322331331121211113313331333133313233313331333132313311221322121   <<    C13223313311212111133133313331333132333133313331323133112213221213   >>      C13223313311212111133133313331333132333133313331323133112213221212   >>