C1111233131211111211113313331333133313221211113313331333133313331121133311   >>    C111123313121111121111331333133313331322121111331333133313331333112113331   <<    C1111233131211111211113313331333133313221211113313331333133313331121133313   >>      C1111233131211111211113313331333133313221211113313331333133313331121133312   >>