#include <bits/stdc++.h>
using namespace std;
const double PI = acos(-1);
const double eps = 1e-9;
const int mf[] = {0, 0, 1, -1}, mc[] = {1, -1, 0, 0};
const int N = 200005;
const int inf = 1e9;
mt19937 rng(
    (unsigned int)chrono::steady_clock::now().time_since_epoch().count());
template <typename T>
static T randint(T lo, T hi) {
  return uniform_int_distribution<T>(lo, hi)(rng);
}
template <typename T>
static T randreal(T lo, T hi) {
  return uniform_real_distribution<T>(lo, hi)(rng);
}
void fft(vector<complex<double> > &a, bool invert) {
  int n = (int)a.size();
  for (int i = 1, j = 0; i < n; ++i) {
    int bit = n >> 1;
    for (; j >= bit; bit >>= 1) j -= bit;
    j += bit;
    if (i < j) swap(a[i], a[j]);
  }
  for (int len = 2; len <= n; len <<= 1) {
    double ang = 2 * PI / len * (invert ? -1 : 1);
    complex<double> wlen(cos(ang), sin(ang));
    for (int i = 0; i < n; i += len) {
      complex<double> w(1);
      for (int j = 0; j < len / 2; ++j) {
        complex<double> u = a[i + j], v = a[i + j + len / 2] * w;
        a[i + j] = u + v;
        a[i + j + len / 2] = u - v;
        w *= wlen;
      }
    }
  }
  if (invert) {
    for (int i = 0; i < n; ++i) a[i] /= n;
  }
}
vector<int> multiply(const vector<int> &a, const vector<int> &b) {
  vector<complex<double> > fa(a.begin(), a.end()), fb(b.begin(), b.end());
  size_t n = 1;
  while (n < max(a.size(), b.size())) n <<= 1;
  n <<= 1;
  fa.resize(n), fb.resize(n);
  fft(fa, false), fft(fb, false);
  for (size_t i = 0; i < n; ++i) fa[i] *= fb[i];
  fft(fa, true);
  vector<int> res(n);
  for (size_t i = 0; i < n; ++i) res[i] = int(fa[i].real() + 0.5);
  return res;
}
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  rng.seed(time(0));
  auto t = clock();
  int n, x, y;
  cin >> n >> x >> y;
  vector<int> a(n + 1);
  for (int &i : a) cin >> i;
  int zero = 2e5;
  vector<int> p1(2 * zero + 10), p2(2 * zero + 10);
  for (int i : a) {
    p1[i]++;
    p2[zero - i]++;
  }
  auto p = multiply(p1, p2);
  int q;
  cin >> q;
  for (int i = 1; i <= q; i++) {
    int n;
    cin >> n;
    int ans = -1;
    n >>= 1;
    for (int d1 = 1; d1 * d1 <= n; d1++) {
      if (n % d1 != 0) continue;
      int d2 = n / d1;
      if (y < d1 && p[zero + d1 - y]) ans = max(ans, d1);
      if (y < d2 && p[zero + d2 - y]) ans = max(ans, d2);
    }
    if (ans != -1) ans <<= 1;
    cout << ans << " \n"[i == q];
  }
  return 0;
}
