#include<iostream>
#include<string>

int main(){
    int n,a,b,c;std::cin >> n >> a >> b >> c;
    int wa[n+4]={};
    wa[n+1]=1e7,wa[n+2]=2e7,wa[n+3]=3e7;
    {
        int idx=0;
        std::string s;
        while(std::cin >> s){
            wa[idx+1]=wa[idx]+s.size();
            idx++;
        }
    }
    int i=0,j=0,k=0;
    int cnt=0;
    for(int l=0;l<n;l++){
        while(wa[i]-wa[l]<a)i++;
        while(wa[j]-wa[i]<b)j++;
        while(wa[k]-wa[j]<c)k++;
        if(wa[i]-wa[l]==a && wa[j]-wa[i]==b && wa[k]-wa[j]==c)cnt++;
    }
    std::cout << cnt << '\n';
}