import java.io.BufferedReader;
import java.io.FileReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
private static boolean Debug = false;
private static int RomeLen;
private static int[] RoomSize;
private static int BossSee;
private static int CentSee;
public static void main(String[] args) throws Exception { File f = new File("C:\\Users\\wvimi\\Downloads", "sample_input (11).txt"); FileReader reader = new FileReader(f);
br = new BufferedReader(reader);
br = new BufferedReader(new InputStreamReader(System.in));
RomeLen = Integer.parseInt(br.readLine());
RoomSize = new int[RomeLen];
st = new StringTokenizer(br.readLine());
for (int i = 0; i < RomeLen; i++) { RoomSize[i] = Integer.parseInt(st.nextToken());
st = new StringTokenizer(br.readLine());
BossSee = Integer.parseInt(st.nextToken());
CentSee = Integer.parseInt(st.nextToken());
long Count = countPeople();
System.out.println(Count);
private static long countPeople() { for (int i = 0; i < RomeLen; i++) { count += pLen / CentSee + (pLen % CentSee != 0 ? 1 : 0);
public static void log(String input) { System.out.println(input);
public static void log(String input, Object... args) { System.out.println(String.format(input, args));