#include <bits/stdc++.h>
using namespace std;
template <typename TF>
void debug(ostream &out, TF const &f) {
  out << f << std::endl;
}
template <typename TF, typename... TR>
void debug(ostream &out, TF const &f, TR const &...rest) {
  out << f << " ";
  debug(out, rest...);
}
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using pdd = pair<double, double>;
using vi = vector<int>;
using vii = vector<pii>;
using vll = vector<ll>;
using vs = vector<string>;
const int DR[] = {-1, 0, 1, 0, -1, 1, 1, -1};
const int DC[] = {0, -1, 0, 1, -1, -1, 1, 1};
const double PI = acos(-1.0);
const double EPS = 1e-9;
const int MOD = 1e9 + 7;
const int INF = 1073741823;
const ll INFLL = 4e18;
const int MAX = 1e5;
int N, A, B, C;
multiset<int> ms;
void read() {
  cin >> A >> B >> C >> N;
  for (int i = 0; i < (int)N; i++) {
    int x;
    cin >> x;
    ms.insert(x);
  }
}
void solve() {
  ll ans = 0;
  auto it = ms.upper_bound(B);
  while (it != ms.end() && *it < C) {
    ans++;
    it++;
  }
  cout << ans << "\n";
}
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  int TC = 1;
  for (int tc = (int)1; tc <= (int)TC; tc++) {
    read();
    solve();
  }
}
