C13223313311212111133133313331333133313233121333133313331333231333112331322221   >>    C1322331331121211113313331333133313331323312133313331333133323133311233132222   <<    C13223313311212111133133313331333133313233121333133313331333231333112331322223   >>      C13223313311212111133133313331333133313233121333133313331333231333112331322222   >>