#pragma GCC optimize ("O3")
#pragma GCC target ("avx") // yukicoder
// #pragma GCC target ("sse4") // SPOJ, codechef

#include <cstdio>
#include <cassert>
#include <cmath>
#include <cstring>

#include <complex>
#include <algorithm>
#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <functional>
#include <tuple>

#define _rep(_1, _2, _3, _4, name, ...) name
#define rep2(i, n) rep3(i, 0, n)
#define rep3(i, a, b) rep4(i, a, b, 1)
#define rep4(i, a, b, c) for (int i = int(a); i < int(b); i += int(c))
#define rep(...) _rep(__VA_ARGS__, rep4, rep3, rep2, _)(__VA_ARGS__)

using namespace std;

using i8 = signed char;
using i64 = long long;
using u8 = unsigned char;
using u32 = unsigned;
using u64 = unsigned long long;
using f80 = long double; 

int A[100];
i8 dp[100010];

void solve() {
  int T; scanf("%d", &T);
  rep(_, T) {
    int n1, n2; scanf("%d %d", &n1, &n2);
    int m; scanf("%d", &m);
    rep(i, m) scanf("%d", &A[i]);
    sort(A, A + m);
    if (n1 > n2) swap(n1, n2);

    const i8 inf = 100;
    fill(dp, dp + n1 + 1, inf);

    dp[0] = 0;
    int s = 0, ans = 0;
    rep(t, m) {
      int v = A[t];
      s += v;
      if (s > n1 + n2) break;
      for (int i = min(n1, s); i >= v; --i) {
        dp[i] = min(dp[i], i8(dp[i - v] + 1));
      }
      for (int i = min(n1, s); ; --i) {
        if (dp[i] < inf) {
          ans += (s - i) <= n2;
          break;
        }
      }
    }
    printf("%d\n", ans);
  }
}

int main() {
  clock_t beg = clock();
  solve();
  clock_t end = clock();
  fprintf(stderr, "%.3f sec\n", double(end - beg) / CLOCKS_PER_SEC);
  return 0;
}