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 a = sc.nextInt();
        int b = a + sc.nextInt();
        int c = b + sc.nextInt();
        int[] sums = new int[n + 1];
        for (int i = 1; i <= n; i++) {
            sums[i] = sums[i - 1] + sc.next().length();
        }
        int aIdx = 0;
        int bIdx = 0;
        int cIdx = 0;
        int ans = 0;
        for (int i = 0; i < n; i++) {
            while (aIdx <= n && sums[aIdx] - sums[i] < a) {
                aIdx++;
            }
            if (aIdx > n) {
                break;
            }
            if (sums[aIdx] - sums[i] > a) {
                continue;
            }
            while (bIdx <= n && sums[bIdx] - sums[i] < b) {
                bIdx++;
            }
            if (bIdx > n) {
                break;
            }
            if (sums[bIdx] - sums[i] > b) {
                continue;
            }
            while (cIdx <= n && sums[cIdx] - sums[i] < c) {
                cIdx++;
            }
            if (cIdx > n) {
                break;
            }
            if (sums[cIdx] - sums[i] > c) {
                continue;
            }
            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();
    }
    
}