/**
 *   @FileName	a.cpp
 *   @Author	kanpurin
 *   @Created	2020.06.02 02:27:20
**/

#include "bits/stdc++.h" 
using namespace std; 
typedef long long ll;

int main() {
    int b,c,d;cin >> b >> c >> d;
    int n;cin >> n;
    vector<int> e(n);
    for (int i = 0; i < n; i++) {
        cin >> e[i];
    }
    sort(e.begin(), e.end());
    // dp[i][j] : i番目まででj個つかう
    vector<vector<ll>> dp(n + 1,vector<ll>(4,0));
    dp[0][0] = 1;
    for (int i = 0; i < n; i++) {
        dp[i + 1][0] += dp[i][0] * 2;
        dp[i + 1][1] += dp[i][1];
        dp[i + 1][2] += dp[i][2];
        dp[i + 1][3] += dp[i][3];
        if (b <= e[i]) dp[i + 1][1] += dp[i][0];
        if (c <= e[i]) dp[i + 1][2] += dp[i][1];
        if (d <= e[i]) dp[i + 1][3] += dp[i][2];
    }
    cout << dp[n][3] << endl;
    return 0;
}