180402_13458_시험 감독

	//https://www.acmicpc.net/problem/13458 #include <iostream>
	using namespace std;
	int N, B, C;
	int A[1000000];
	int main(){
	cin >> N;
	for(int i=0; i<N; i++)
	cin >> A[i];
	cin >> B >> C;
	long long ans=N;//감독관 무조건 1명
	for(int i=0; i<N; i++){
	if(A[i]<B) continue;
	else{
	ans+=(A[i]-B+C-1)/C;
	}
	}
	cout << ans;
	}