C1111233131211111211113313331333133313221211113313331333133313331121131213231   >>    C111123313121111121111331333133313331322121111331333133313331333112113121323   <<    C1111233131211111211113313331333133313221211113313331333133313331121131213233   >>      C1111233131211111211113313331333133313221211113313331333133313331121131213232   >>