C132233133112121111331333133313231333133313231311331333132211312131   >>    C13223313311212111133133313331323133313331323131133133313221131213   <<    C132233133112121111331333133313231333133313231311331333132211312133   >>      C132233133112121111331333133313231333133313231311331333132211312132   >>