C13223313311212111133133313331333132333133313331333133112122131   >>    C1322331331121211113313331333133313233313331333133313311212213   <<    C13223313311212111133133313331333132333133313331333133112122133   >>      C13223313311212111133133313331333132333133313331333133112122132   >>