#include <cmath>
#include <deque>
#include <algorithm>
#include <iterator>
#include <list>
#include <tuple>
#include <map>
#include <unordered_map>
#include <queue>
#include <set>
#include <unordered_set>
#include <stack>
#include <string>
#include <vector>
#include <fstream>
#include <iostream>
#include <functional>
#include <numeric>
#include <iomanip> 
#include <stdio.h>
//eolibraries
#define lnf 3999999999999999999
#define inf 999999999
#define PI 3.14159265359
#define endl "\n"
#define fi first
#define se second
#define pb push_back
#define eb emplace_back
#define ll long long
#define all(c) (c).begin(),(c).end()
#define sz(c) (int)(c).size()
#define mkp(a,b) make_pair(a,b)
#define make_unique(a) sort(all(a)),a.erase(unique(all(a)),a.end())
#define rsz(a,n) a.resize(n)
#define pii pair <int,int>
#define rep(i,n) for(int i = 0 ; i < n ; i++) 
#define drep(i,n) for(int i = n-1 ; i >= 0 ; i--)
#define crep(i,x,n) for(int i = x ; i < n ; i++)
#define vi vector <int> 
#define vec(...) vector<__VA_ARGS__>
#define rsz(a,n) a.resize(n)
#define rszv(a,n,v) a.resize(n,v)
#define fcin ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
//eodefine
using namespace std;
 
const int max_n = 603002;
 
int n,a,b,c;
vi x;

int main(){
fcin;
	cin>>n>>a>>b>>c;

	rep(i,n) {
		string s;
		cin>>s;
		x.pb(sz(s));
	}

	vec(ll) psum(max_n,0);

	rep(i,n) psum[i]=(i-1>=0?psum[i-1]:0)+x[i];

	vi np={0,0,0};

	ll ans=0;
	rep(i,n) {
		while(np[0]<n and psum[np[0]]-(i-1>=0?psum[i-1]:0)<a) np[0]++;
		np[1]=max(np[1],np[0]+1);
		while(np[1]<n and psum[np[1]]-psum[np[0]]<b) np[1]++;
		np[2]=max(np[2],np[1]+1);
		while(np[2]<n and psum[np[2]]-psum[np[1]]<c) np[2]++;
		if(max({np[0],np[1],np[2]})>=n)continue;
		if(psum[np[0]]-(i-1>=0?psum[i-1]:0)==a and psum[np[1]]-psum[np[0]]==b
			and np[2]<n and psum[np[2]]-psum[np[1]]==c) ans++;		
	}

	cout<<ans<<"\n";

 
/*
*/
 
    return 0;   
}