#define _USE_MATH_DEFINES
#include<iostream>
#include<vector>
#include<algorithm>
#include<cmath>
#include<string>
#include<iomanip>
#include<numeric>
#include<queue>
#include<deque>
#include<stack>
#include<set>
#include<map>
#include<random>
#include<bitset>
#include<cassert>
#include<complex>
#include<fstream>
#include<cstdlib>
#include<functional>
#include<array>
using namespace std;
typedef long long ll;
const int mod=998244353;
const int dx[]={1,0,0,-1},dy[]={0,1,-1,0};
typedef pair<ll,ll>P;
int tmp[200000];
int main(){
	int n,x,m,a;
	cin>>n>>x>>m;
	for(int i=0;i<n;i++){
		cin>>a;
		while(a>=x){
			tmp[i]++;
			a/=2;
		}
	}
	int ans=0;
	for(int i=n-1;i>=0;i--){
		ans+=tmp[i];
		if(i)
			tmp[i-1]=max(tmp[i-1],tmp[i]);
	}
	cout<<(ans<=m?"Yes":"No")<<endl;
}