import java.io.*;
import java.util.*;
import java.util.stream.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        int[] length = new int[3];
        for (int i = 0; i < 3; i++) {
            length[i] = sc.nextInt();
            if (i > 0) {
                length[i] += length[i - 1];
            } 
        }
        int[] sums = new int[n + 1];
        for (int i = 1; i <= n; i++) {
            sums[i] = sums[i - 1] + sc.next().length();
        }
        int ans = 0;
        for (int i = 0; i <= n; i++) {
            boolean enable = true;
            for (int j = 0; j < 3 && enable; j++) {
                int left = i;
                int right = n + 1;
                while (right - left > 1) {
                    int m = (left + right) / 2;
                    if (sums[m] - sums[i] <= length[j]) {
                        left = m;
                    } else {
                        right = m;
                    }
                }
                enable = (sums[left] - sums[i] == length[j]);
            }
            if (enable) {
                ans++;
            }
        }
        System.out.println(ans);
    }
}
class Utilities {
    static String arrayToLineString(Object[] arr) {
        return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n"));
    }
    
    static String arrayToLineString(int[] arr) {
        return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));
    }
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public int[] nextIntArray() throws Exception {
        return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();
    }
    
    public String next() throws Exception {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
    
}