#include <bits/stdc++.h>
using namespace std;

int main() {
    int d; cin >> d;
    
    while(d) {
        int n1, n2; cin >> n1 >> n2;
        int m; cin >> m;
        int A[m];
        
        for (int i=0; i<m; i++) cin >> A[i];
        
        sort(A, A+m);
        bool dp[m+1][n1+1];
        
        for (int i=0; i<=m; i++) {
            for (int j=0; j<=n1; j++) {
                dp[i][j] = false;
            }
        }
        
        dp[0][0] = true;
        int acc = 0;
        
        for (int i=0; i<m; i++) {
            for (int j=0; j<=n1; j++) {
                if (j+A[i]<=n1) {
                    dp[i+1][j+A[i]] |= dp[i][j];
                }
                
                int n2_used = acc-j;
                
                if (n2_used+A[i]<=n2) {
                    dp[i+1][j] |= dp[i][j];
                }
            }
            
            acc += A[i];
        }
        
        bool flag = false;
        
        for (int i=m; i>=0; i--) {
            for (int j=0; j<=n1; j++) {
                if (dp[i][j]) {
                    cout << i << endl;
                    flag = true;
                    break;
                }
            }
            
            if (flag) {
                break;
            }
        }
        
        d--;
    }
}