9.20腾讯笔试（第一题过90%）

import java.util.Scanner;

/**
 * Created by lenovo on 2019/9/20.
 */

public class Main{
    public static void main(String[] args) {
        Scanner read = new Scanner(System.in);
        int t = read.nextInt();
        int len;
        String num;
        int i=0;
        while(i < t && read.hasNext()){
            i++;
            len = read.nextInt();
            num = read.next();
            if(len < 11){
                System.out.println("NO");
            }else{ //数量是足够的
                int begin = num.indexOf("8");
                if(begin >= 0){//有8
                    if(len - begin >= 11){
                        System.out.println("YES");
                    }else{
                        System.out.println("NO");
                    }
                }else{
                    System.out.println("NO");
                }

            }
        }
    }
}