import java.io.*;
import java.util.*;

class Main
{
    public static void main(String args[])throws Exception
    {
        BufferedReader bu=new BufferedReader(new InputStreamReader(System.in));
        StringBuilder sb=new StringBuilder();
        String s[]=bu.readLine().split(" ");
        int n=Integer.parseInt(s[0]),a=Integer.parseInt(s[1]),b=Integer.parseInt(s[2]),x=Integer.parseInt(s[3]),y=Integer.parseInt(s[4]);
        int i; long h[]=new long[n];
        s=bu.readLine().split(" ");
        for(i=0;i<n;i++) h[i]=Integer.parseInt(s[i]);

        long ded=1l*a*x+1l*b*y;
        boolean ans=true;
        for(i=0;i<n;i++)
        {
            long tem=Math.max(0,Math.min(ded,h[i]));
            h[i]-=tem;
            ded-=tem;
            if(h[i]>0) {ans=false; break;}
        }

        if(ans) sb.append("Yes\n");
        else sb.append("No\n");
        System.out.print(sb);
    }
}