C1111233131211111211113313331333133313221211113313331333133313331121133112111   >>    C111123313121111121111331333133313331322121111331333133313331333112113311211   <<    C1111233131211111211113313331333133313221211113313331333133313331121133112113   >>      C1111233131211111211113313331333133313221211113313331333133313331121133112112   >>