#include<bits/stdc++.h>
using namespace std;
using Int = long long;
template<typename T1,typename T2> inline void chmin(T1 &a,T2 b){if(a>b) a=b;}
template<typename T1,typename T2> inline void chmax(T1 &a,T2 b){if(a<b) a=b;}

//INSERT ABOVE HERE
signed main(){
  Int T;
  cin>>T;
  while(T--){
    Int n1,n2,m;
    cin>>n1>>n2>>m;
    vector<Int> a(m);
    for(Int i=0;i<m;i++) cin>>a[i];

    using BS = bitset<114514>;
    sort(a.begin(),a.end());
    BS dp(0);
    dp[0]=1;
    Int ans=0;
    for(Int i=0,s=0;i<m;i++){
      s+=a[i];
      if(n1+n2<s) break;
      dp=dp|(dp<<a[i]);
      for(Int j=0;j<=n1;j++)
        if(dp[j]&&j<=s&&(s-j)<=n2) chmax(ans,i+1);
    }
    cout<<ans<<endl;
  }
  return 0;
}