C13223313311212111133133313331333133313232233133313331321121121211   >>    C1322331331121211113313331333133313331323223313331333132112112121   <<    C13223313311212111133133313331333133313232233133313331321121121213   >>      C13223313311212111133133313331333133313232233133313331321121121212   >>