#include <iostream>
#include <vector>
#include <string>
using namespace std;

int main(){
    int n;
    cin >> n;
    int a, b, c;
    cin >> a >> b >> c;
    vector<string> s(n);
    for(auto &p: s) cin >> p;
    vector<int> lens(n);
    for(int i = 0; i < n; i++) lens[i] = s[i].length();
    
    vector<long long int> sum(n+1);
    for(int i = 0; i < n; i++){
        sum[i+1] = sum[i]+lens[i];
        //cerr << sum[i+1] << " ";
    }

    int ans = 0;
    for(int l = 0; l < n; l++){
        int l1 = l;
        int wa = n+1;
        while(wa-l1 > 1){
            int wj = (wa+l1)/2;
            if(sum[wj]-sum[l] <= a) l1 = wj;
            else wa = wj;
        }
        if(sum[l1]-sum[l] != a) continue;

        int l2 = l1;
        wa = n+1;
        while(wa-l2 > 1){
            int wj = (wa+l2)/2;
            if(sum[wj]-sum[l1] <= b) l2 = wj;
            else wa = wj;
        }

        if(sum[l2]-sum[l1] != b) continue;

        int r = l2;
        wa = n+1;
        while(wa-r > 1){
            int wj = (wa+r)/2;
            if(sum[wj]-sum[l2] <= c) r = wj;
            else wa = wj;
        }
        
        if(sum[r]-sum[l2] == c) ans++;
    }

    cout << ans << endl;

    return 0;
}