#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 1000000001

int main(){
	
	int N,A,B;
	cin>>N>>A>>B;
	
	long long x,y;
	cin>>x>>y;
	
	priority_queue<long long> Q;
	rep(i,N){
		long long t;
		cin>>t;
		Q.push(t);
	}
	
	rep(i,A){
		auto t = Q.top();
		Q.pop();
		t -= x;
		Q.push(t);
	}
	long long AA = y*B;
	while(Q.size()>0){
		auto t = Q.top();
		Q.pop();
		AA -= max(0LL,t);
	}
	
	if(AA>=0)cout<<"Yes"<<endl;
	else cout<<"No"<<endl;
		
	
	return 0;
}