#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair<int, int>;
using pdd = pair<double, double>;
using pll = pair<ll, ll>;
using pli = pair<ll, int>;
using pil = pair<int, ll>;
template <typename T>
using Graph = vector<vector<T>>;
const int MOD = 1e9 + 7;
const ld PI = acos(-1);

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);

    int N, a, b, c;
    cin >> N >> a >> b >> c;
    vector<int> len(N);
    for (int i = 0; i < N; ++i) {
        string S;
        cin >> S;
        len[i] = S.size();
    }

    auto func = [&](int k) -> vector<bool> {
        vector<bool> res(N);
        int r = 0, nlen = 0;
        for (int l = 0; l < N; ++l) {
            while (r < N && nlen < k) {
                nlen += len[r];
                r++;
            }
            if (nlen == k) {
                res[l] = true;
            }
            nlen -= len[l];
        }
        return res;
    };

    auto aa = func(a);
    auto bb = func(a + b);
    auto cc = func(a + b + c);
    int ans = 0;
    for (int i = 0; i < N; ++i) {
        ans += aa[i] & bb[i] & cc[i];
    }

    cout << ans << endl;

    return 0;
}