#include <cstdio>
#include <algorithm>
#include <bitset>
using namespace std;

int N0, N1;
int M;
int A[60];

bitset<100001> dp;

int main() {
  int numCases;
  scanf("%d", &numCases);
  for (; numCases--; ) {
    scanf("%d%d%d", &N0, &N1, &M);
    for (int i = 0; i < M; ++i) {
      scanf("%d", &A[i]);
    }
    sort(A, A + M);
    dp.reset();
    dp.set(0);
    int sum = 0;
    int ans = 0;
    for (int i = 0; i < M; ++i) {
      dp |= dp << A[i];
      sum += A[i];
      for (int x = max(sum - N1, 0); x <= N0; ++x) {
        if (dp[x]) {
          ans = i + 1;
          break;
        }
      }
    }
    printf("%d\n", ans);
  }
  return 0;
}