C13223313311212111133133313331333133313232233133313332313221211   >>    C1322331331121211113313331333133313331323223313331333231322121   <<    C13223313311212111133133313331333133313232233133313332313221213   >>      C13223313311212111133133313331333133313232233133313332313221212   >>