
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int m = sc.nextInt();
		int[] p = new int[n];
		int sotoku = 0;
		int pop = 0;
		int comp = 0;


		for (int i = 0; i < n; i ++){
			p[i] = sc.nextInt();
			sotoku = sotoku + p[i];
		}

		if (sotoku % (4 * m) == 0){
			comp = sotoku / (4 * m);
		} else {
			comp = sotoku / (4 * m) + 1;
		}

		for (int point : p){
			if (point >= comp){
				pop ++;
			}
		}

		if (pop >= m){
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}

	}

} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int m = sc.nextInt();
		int[] p = new int[n];
		int sotoku = 0;
		int pop = 0;
		int comp = 0;


		for (int i = 0; i < n; i ++){
			p[i] = sc.nextInt();
			sotoku = sotoku + p[i];
		}

		if (sotoku % (4 * m) == 0){
			comp = sotoku / (4 * m);
		} else {
			comp = sotoku / (4 * m) + 1;
		}

		for (int point : p){
			if (point >= comp){
				pop ++;
			}
		}

		if (pop >= m){
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}

	}

} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int m = sc.nextInt();
		int[] p = new int[n];
		int sotoku = 0;
		int pop = 0;
		int comp = 0;


		for (int i = 0; i < n; i ++){
			p[i] = sc.nextInt();
			sotoku = sotoku + p[i];
		}

		if (sotoku % (4 * m) == 0){
			comp = sotoku / (4 * m);
		} else {
			comp = sotoku / (4 * m) + 1;
		}

		for (int point : p){
			if (point >= comp){
				pop ++;
			}
		}

		if (pop >= m){
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}

	} main {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int m = sc.nextInt();
		int[] p = new int[n];
		int sotoku = 0;
		int pop = 0;
		int comp = 0;


		for (int i = 0; i < n; i ++){
			p[i] = sc.nextInt();
			sotoku = sotoku + p[i];
		}

		if (sotoku % (4 * m) == 0){
			comp = sotoku / (4 * m);
		} else {
			comp = sotoku / (4 * m) + 1;
		}

		for (int point : p){
			if (point >= comp){
				pop ++;
			}
		}

		if (pop >= m){
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}

	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int m = sc.nextInt(); m sc.nextInt() sc.nextInt sc int[] p = new int[n]; p new int[n] n int sotoku = 0; sotoku 0 int pop = 0; pop 0 int comp = 0; comp 0 for (int i = 0; i < n; i ++){
			p[i] = sc.nextInt();
			sotoku = sotoku + p[i];
		} int i = 0; int i = 0; i 0 i < n i n i ++ i ++ i {
			p[i] = sc.nextInt();
			sotoku = sotoku + p[i];
		} {
			p[i] = sc.nextInt();
			sotoku = sotoku + p[i];
		} p[i] = sc.nextInt() p[i] p i sc.nextInt() sc.nextInt sc sotoku = sotoku + p[i] sotoku sotoku + p[i] sotoku p[i] p i if (sotoku % (4 * m) == 0){
			comp = sotoku / (4 * m);
		} else {
			comp = sotoku / (4 * m) + 1;
		} sotoku % (4 * m) == 0 sotoku % (4 * m) sotoku (4 * m) 4 m 0 {
			comp = sotoku / (4 * m);
		} comp = sotoku / (4 * m) comp sotoku / (4 * m) sotoku (4 * m) 4 m {
			comp = sotoku / (4 * m) + 1;
		} comp = sotoku / (4 * m) + 1 comp sotoku / (4 * m) + 1 sotoku / (4 * m) sotoku (4 * m) 4 m 1 for (int point : p){
			if (point >= comp){
				pop ++;
			}
		} int point p {
			if (point >= comp){
				pop ++;
			}
		} {
			if (point >= comp){
				pop ++;
			}
		} if (point >= comp){
				pop ++;
			} point >= comp point comp {
				pop ++;
			} pop ++ pop if (pop >= m){
			System.out.println("Yes");
		} else {
			System.out.println("No");
		} pop >= m pop m {
			System.out.println("Yes");
		} System.out.println("Yes") System.out.println System.out System System.out "Yes" {
			System.out.println("No");
		} System.out.println("No") System.out.println System.out System System.out "No" String[] args args public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int m = sc.nextInt();
		int[] p = new int[n];
		int sotoku = 0;
		int pop = 0;
		int comp = 0;


		for (int i = 0; i < n; i ++){
			p[i] = sc.nextInt();
			sotoku = sotoku + p[i];
		}

		if (sotoku % (4 * m) == 0){
			comp = sotoku / (4 * m);
		} else {
			comp = sotoku / (4 * m) + 1;
		}

		for (int point : p){
			if (point >= comp){
				pop ++;
			}
		}

		if (pop >= m){
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}

	}

} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int m = sc.nextInt();
		int[] p = new int[n];
		int sotoku = 0;
		int pop = 0;
		int comp = 0;


		for (int i = 0; i < n; i ++){
			p[i] = sc.nextInt();
			sotoku = sotoku + p[i];
		}

		if (sotoku % (4 * m) == 0){
			comp = sotoku / (4 * m);
		} else {
			comp = sotoku / (4 * m) + 1;
		}

		for (int point : p){
			if (point >= comp){
				pop ++;
			}
		}

		if (pop >= m){
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}

	}

} Main

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int m = sc.nextInt();
		int[] p = new int[n];
		int sotoku = 0;
		int pop = 0;
		int comp = 0;


		for (int i = 0; i < n; i ++){
			p[i] = sc.nextInt();
			sotoku = sotoku + p[i];
		}

		if (sotoku % (4 * m) == 0){
			comp = sotoku / (4 * m);
		} else {
			comp = sotoku / (4 * m) + 1;
		}

		for (int point : p){
			if (point >= comp){
				pop ++;
			}
		}

		if (pop >= m){
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}

	}

}
