#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 1000000001

int main(){
	
	int N;
	cin>>N;
	
	int a,b,c;
	cin>>a>>b>>c;
	
	vector<int> S(N+1,0);
	rep(i,N){
		string s;
		cin>>s;
		S[i+1] = S[i] + s.size();
	}
	int ans = 0;
	rep(i,N){
		if(binary_search(S.begin(),S.end(),S[i] + a) && binary_search(S.begin(),S.end(),S[i] + a+b) &&
		binary_search(S.begin(),S.end(),S[i] + a+b+c)){
			ans++;
		}
	}
	
	cout<<ans<<endl;
	
	return 0;
}