def main():
    N = int(input())
    a,b,c = map(int,input().split())
    S = list(map(str,input().split()))
    cumsum = [0]
    for i in range(N):
        temp = cumsum[-1] + len(S[i])
        cumsum.append(temp)
    #print(cumsum)
    r = 0
    ans = 0
    for l in range(N):
        while r < N and cumsum[r] - cumsum[l] < a+b+c:
            r += 1
        if cumsum[r] - cumsum[l] == a+b+c:
            p = l
            while cumsum[p] - cumsum[l] < a:
                p += 1
            q = r
            while cumsum[r] - cumsum[q] < c:
                q -= 1
            if cumsum[r] - cumsum[q] == c and cumsum[q] - cumsum[p] == b and cumsum[p] - cumsum[l] == a:
                ans += 1
        if l == r:
            r += 1
    print(ans)


if __name__ == '__main__':
    main()