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

public class Main extends PrintWriter {
	Main() { super(System.out, true); }
	Scanner sc = new Scanner(System.in);
	public static void main(String[] $) {
		Main o = new Main(); o.main(); o.flush();
	}

	void main() {
		int n = sc.nextInt();
		int m = sc.nextInt();
		int[] aa = new int[n];
		int sum = 0;
		for (int i = 0; i < n; i++)
			sum += aa[i] = sc.nextInt();
		int cnt = 0;
		for (int i = 0; i < n; i++)
			if (aa[i] * 4 * m >= sum)
				cnt++;
		println(cnt >= m ? "Yes" : "No");
	}
} import java.io.*; io.* java import java.util.*; util.* java public class Main extends PrintWriter {
	Main() { super(System.out, true); }
	Scanner sc = new Scanner(System.in);
	public static void main(String[] $) {
		Main o = new Main(); o.main(); o.flush();
	}

	void main() {
		int n = sc.nextInt();
		int m = sc.nextInt();
		int[] aa = new int[n];
		int sum = 0;
		for (int i = 0; i < n; i++)
			sum += aa[i] = sc.nextInt();
		int cnt = 0;
		for (int i = 0; i < n; i++)
			if (aa[i] * 4 * m >= sum)
				cnt++;
		println(cnt >= m ? "Yes" : "No");
	}
} Main Scanner sc = new Scanner(System.in); sc new Scanner(System.in) Main() { super(System.out, true); } Main { super(System.out, true); } super(System.out, true) super System.out System System.out true public static void main(String[] $) {
		Main o = new Main(); o.main(); o.flush();
	} main {
		Main o = new Main(); o.main(); o.flush();
	} Main o = new Main(); o new Main() o.main() o.main o o.flush() o.flush o String[] $ $ void main() {
		int n = sc.nextInt();
		int m = sc.nextInt();
		int[] aa = new int[n];
		int sum = 0;
		for (int i = 0; i < n; i++)
			sum += aa[i] = sc.nextInt();
		int cnt = 0;
		for (int i = 0; i < n; i++)
			if (aa[i] * 4 * m >= sum)
				cnt++;
		println(cnt >= m ? "Yes" : "No");
	} main {
		int n = sc.nextInt();
		int m = sc.nextInt();
		int[] aa = new int[n];
		int sum = 0;
		for (int i = 0; i < n; i++)
			sum += aa[i] = sc.nextInt();
		int cnt = 0;
		for (int i = 0; i < n; i++)
			if (aa[i] * 4 * m >= sum)
				cnt++;
		println(cnt >= m ? "Yes" : "No");
	} int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int m = sc.nextInt(); m sc.nextInt() sc.nextInt sc int[] aa = new int[n]; aa new int[n] n int sum = 0; sum 0 for (int i = 0; i < n; i++)
			sum += aa[i] = sc.nextInt(); int i = 0; int i = 0; i 0 i < n i n i++ i++ i sum += aa[i] = sc.nextInt(); sum += aa[i] = sc.nextInt() sum aa[i] = sc.nextInt() aa[i] aa i sc.nextInt() sc.nextInt sc int cnt = 0; cnt 0 for (int i = 0; i < n; i++)
			if (aa[i] * 4 * m >= sum)
				cnt++; int i = 0; int i = 0; i 0 i < n i n i++ i++ i if (aa[i] * 4 * m >= sum)
				cnt++; if (aa[i] * 4 * m >= sum)
				cnt++; aa[i] * 4 * m >= sum aa[i] * 4 * m aa[i] * 4 * m aa[i] aa i 4 m sum cnt++ cnt println(cnt >= m ? "Yes" : "No") println cnt >= m ? "Yes" : "No" cnt >= m cnt m "Yes" "No" PrintWriter public class Main extends PrintWriter {
	Main() { super(System.out, true); }
	Scanner sc = new Scanner(System.in);
	public static void main(String[] $) {
		Main o = new Main(); o.main(); o.flush();
	}

	void main() {
		int n = sc.nextInt();
		int m = sc.nextInt();
		int[] aa = new int[n];
		int sum = 0;
		for (int i = 0; i < n; i++)
			sum += aa[i] = sc.nextInt();
		int cnt = 0;
		for (int i = 0; i < n; i++)
			if (aa[i] * 4 * m >= sum)
				cnt++;
		println(cnt >= m ? "Yes" : "No");
	}
} public class Main extends PrintWriter {
	Main() { super(System.out, true); }
	Scanner sc = new Scanner(System.in);
	public static void main(String[] $) {
		Main o = new Main(); o.main(); o.flush();
	}

	void main() {
		int n = sc.nextInt();
		int m = sc.nextInt();
		int[] aa = new int[n];
		int sum = 0;
		for (int i = 0; i < n; i++)
			sum += aa[i] = sc.nextInt();
		int cnt = 0;
		for (int i = 0; i < n; i++)
			if (aa[i] * 4 * m >= sum)
				cnt++;
		println(cnt >= m ? "Yes" : "No");
	}
} Main
import java.io.*;
import java.util.*;

public class Main extends PrintWriter {
	Main() { super(System.out, true); }
	Scanner sc = new Scanner(System.in);
	public static void main(String[] $) {
		Main o = new Main(); o.main(); o.flush();
	}

	void main() {
		int n = sc.nextInt();
		int m = sc.nextInt();
		int[] aa = new int[n];
		int sum = 0;
		for (int i = 0; i < n; i++)
			sum += aa[i] = sc.nextInt();
		int cnt = 0;
		for (int i = 0; i < n; i++)
			if (aa[i] * 4 * m >= sum)
				cnt++;
		println(cnt >= m ? "Yes" : "No");
	}
}
