using System;
using System.Collections.Generic;
using System.Text;
using System.Linq;

class Program
{
    public void Proc()
    {
        Reader.IsDebug = false;
        int dataSetCount = int.Parse(Reader.ReadLine());

        for(int i=0; i<dataSetCount; i++) {
            int[] takeList = Reader.ReadLine().Split(' ').Select(a=>int.Parse(a)).OrderByDescending(a=>a).ToArray();
            int kyakuCount = int.Parse(Reader.ReadLine());
            KyakuList = Reader.ReadLine().Split(' ').Select(a=>int.Parse(a)).OrderBy(a=>a).ToArray();
            Console.WriteLine(this.GetAns(takeList[0], takeList[1], 0));
        }
    }

    private int[] KyakuList;
    private Dictionary<int, Dictionary<int, Dictionary<string, int>>> dic = new Dictionary<int, Dictionary<int, Dictionary<string, int>>>();

    private String GetKey(long flag) {
        StringBuilder key = new StringBuilder();
        for(int i=0; i<KyakuList.Length; i++) {
            long k= (i<<i);
            if((flag & k) > 0) {
                key.Append("#" + KyakuList[i]);
            }
        }
        return key.ToString();
    }
    private int GetAns(int takeLong, int takeShort, long flag) {
        if(flag == (1<<KyakuList.Length) - 1) {
            return 0;
        }
        if(!this.dic.ContainsKey(takeLong)) {
            this.dic.Add(takeLong, new Dictionary<int, Dictionary<string,int>>());
        }
        if(!this.dic[takeLong].ContainsKey(takeShort)) {
            this.dic[takeLong].Add(takeShort, new Dictionary<string, int>());
        }
        string key = this.GetKey(flag);
        if(this.dic[takeLong][takeShort].ContainsKey(key)) {
            return this.dic[takeLong][takeShort][key];
        }
        int ans = 0;
        for(int i=0; i<KyakuList.Length; i++) {
            long tempFlag = (1<<i);
            if((flag & tempFlag) != 0) {
                continue;
            }
            if(KyakuList[i] <= takeShort) {
                ans = Math.Max(ans, this.GetAns(takeLong, takeShort - this.KyakuList[i], flag + tempFlag) + 1);
            }
            if(KyakuList[i] <= takeLong) {
                int takeTemp = takeLong - KyakuList[i];
                ans = Math.Max(ans, this.GetAns(Math.Max(takeTemp, takeShort), Math.Min(takeTemp, takeShort), flag + tempFlag) + 1);
            }
        }
        this.dic[takeLong][takeShort].Add(key, ans);
        return ans;
    }

    public class Reader
    {
        public static bool IsDebug = true;
        private static String PlainInput = @"


2
10 14
5
4 3 2 7 8
10 10
3
7 7 5



 
";
        private static System.IO.StringReader Sr = null;
        public static string ReadLine()
        {
            if (IsDebug)
            {
                if (Sr == null)
                {
                    Sr = new System.IO.StringReader(PlainInput.Trim());
                }
                return Sr.ReadLine();
            }
            else
            {
                return Console.ReadLine();
            }
        }

    }
    static void Main()
    {
        Program prg = new Program();
        prg.Proc();
    }
}