import java.util.Arrays;
import java.util.Scanner;

public class Main{

	public static void main(String args[]){
		Scanner scan = new Scanner(System.in);
		int N = scan.nextInt();
		int M = scan.nextInt();
		int[] A = new int[N];
		int sum = 0;
		for(int i=0;i<N;i++) {
			A[i] = scan.nextInt();
			sum += A[i];
		}
		int judge = sum/(4*M);
		boolean judgeF = true;
		if(sum%(4*M)>0) {
			judgeF = false;
		}
		Arrays.sort(A);
		String result = "Yes";
		int count = 0;

		for(int j=N-1;count<M;j--) {
			if(judgeF){
				if(A[j]<judge) {
					result = "No";
				}
			}else {
				if(A[j]<=judge) {
					result = "No";
				}
			}
			count++;
		}

		System.out.println(result);

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

	public static void main(String args[]){
		Scanner scan = new Scanner(System.in);
		int N = scan.nextInt();
		int M = scan.nextInt();
		int[] A = new int[N];
		int sum = 0;
		for(int i=0;i<N;i++) {
			A[i] = scan.nextInt();
			sum += A[i];
		}
		int judge = sum/(4*M);
		boolean judgeF = true;
		if(sum%(4*M)>0) {
			judgeF = false;
		}
		Arrays.sort(A);
		String result = "Yes";
		int count = 0;

		for(int j=N-1;count<M;j--) {
			if(judgeF){
				if(A[j]<judge) {
					result = "No";
				}
			}else {
				if(A[j]<=judge) {
					result = "No";
				}
			}
			count++;
		}

		System.out.println(result);

	}
} Main public static void main(String args[]){
		Scanner scan = new Scanner(System.in);
		int N = scan.nextInt();
		int M = scan.nextInt();
		int[] A = new int[N];
		int sum = 0;
		for(int i=0;i<N;i++) {
			A[i] = scan.nextInt();
			sum += A[i];
		}
		int judge = sum/(4*M);
		boolean judgeF = true;
		if(sum%(4*M)>0) {
			judgeF = false;
		}
		Arrays.sort(A);
		String result = "Yes";
		int count = 0;

		for(int j=N-1;count<M;j--) {
			if(judgeF){
				if(A[j]<judge) {
					result = "No";
				}
			}else {
				if(A[j]<=judge) {
					result = "No";
				}
			}
			count++;
		}

		System.out.println(result);

	} main {
		Scanner scan = new Scanner(System.in);
		int N = scan.nextInt();
		int M = scan.nextInt();
		int[] A = new int[N];
		int sum = 0;
		for(int i=0;i<N;i++) {
			A[i] = scan.nextInt();
			sum += A[i];
		}
		int judge = sum/(4*M);
		boolean judgeF = true;
		if(sum%(4*M)>0) {
			judgeF = false;
		}
		Arrays.sort(A);
		String result = "Yes";
		int count = 0;

		for(int j=N-1;count<M;j--) {
			if(judgeF){
				if(A[j]<judge) {
					result = "No";
				}
			}else {
				if(A[j]<=judge) {
					result = "No";
				}
			}
			count++;
		}

		System.out.println(result);

	} Scanner scan = new Scanner(System.in); scan new Scanner(System.in) int N = scan.nextInt(); N scan.nextInt() scan.nextInt scan int M = scan.nextInt(); M scan.nextInt() scan.nextInt scan int[] A = new int[N]; A new int[N] N int sum = 0; sum 0 for(int i=0;i<N;i++) {
			A[i] = scan.nextInt();
			sum += A[i];
		} int i=0; int i=0; i 0 i<N i N i++ i++ i {
			A[i] = scan.nextInt();
			sum += A[i];
		} {
			A[i] = scan.nextInt();
			sum += A[i];
		} A[i] = scan.nextInt() A[i] A i scan.nextInt() scan.nextInt scan sum += A[i] sum A[i] A i int judge = sum/(4*M); judge sum/(4*M) sum (4*M) 4 M boolean judgeF = true; judgeF true if(sum%(4*M)>0) {
			judgeF = false;
		} sum%(4*M)>0 sum%(4*M) sum (4*M) 4 M 0 {
			judgeF = false;
		} judgeF = false judgeF false Arrays.sort(A) Arrays.sort Arrays A String result = "Yes"; result "Yes" int count = 0; count 0 for(int j=N-1;count<M;j--) {
			if(judgeF){
				if(A[j]<judge) {
					result = "No";
				}
			}else {
				if(A[j]<=judge) {
					result = "No";
				}
			}
			count++;
		} int j=N-1; int j=N-1; j N-1 N 1 count<M count M j-- j-- j {
			if(judgeF){
				if(A[j]<judge) {
					result = "No";
				}
			}else {
				if(A[j]<=judge) {
					result = "No";
				}
			}
			count++;
		} {
			if(judgeF){
				if(A[j]<judge) {
					result = "No";
				}
			}else {
				if(A[j]<=judge) {
					result = "No";
				}
			}
			count++;
		} if(judgeF){
				if(A[j]<judge) {
					result = "No";
				}
			}else {
				if(A[j]<=judge) {
					result = "No";
				}
			} judgeF {
				if(A[j]<judge) {
					result = "No";
				}
			} if(A[j]<judge) {
					result = "No";
				} A[j]<judge A[j] A j judge {
					result = "No";
				} result = "No" result "No" {
				if(A[j]<=judge) {
					result = "No";
				}
			} if(A[j]<=judge) {
					result = "No";
				} A[j]<=judge A[j] A j judge {
					result = "No";
				} result = "No" result "No" count++ count System.out.println(result) System.out.println System.out System System.out result String args[] args public class Main{

	public static void main(String args[]){
		Scanner scan = new Scanner(System.in);
		int N = scan.nextInt();
		int M = scan.nextInt();
		int[] A = new int[N];
		int sum = 0;
		for(int i=0;i<N;i++) {
			A[i] = scan.nextInt();
			sum += A[i];
		}
		int judge = sum/(4*M);
		boolean judgeF = true;
		if(sum%(4*M)>0) {
			judgeF = false;
		}
		Arrays.sort(A);
		String result = "Yes";
		int count = 0;

		for(int j=N-1;count<M;j--) {
			if(judgeF){
				if(A[j]<judge) {
					result = "No";
				}
			}else {
				if(A[j]<=judge) {
					result = "No";
				}
			}
			count++;
		}

		System.out.println(result);

	}
} public class Main{

	public static void main(String args[]){
		Scanner scan = new Scanner(System.in);
		int N = scan.nextInt();
		int M = scan.nextInt();
		int[] A = new int[N];
		int sum = 0;
		for(int i=0;i<N;i++) {
			A[i] = scan.nextInt();
			sum += A[i];
		}
		int judge = sum/(4*M);
		boolean judgeF = true;
		if(sum%(4*M)>0) {
			judgeF = false;
		}
		Arrays.sort(A);
		String result = "Yes";
		int count = 0;

		for(int j=N-1;count<M;j--) {
			if(judgeF){
				if(A[j]<judge) {
					result = "No";
				}
			}else {
				if(A[j]<=judge) {
					result = "No";
				}
			}
			count++;
		}

		System.out.println(result);

	}
} Main
import java.util.Arrays;
import java.util.Scanner;

public class Main{

	public static void main(String args[]){
		Scanner scan = new Scanner(System.in);
		int N = scan.nextInt();
		int M = scan.nextInt();
		int[] A = new int[N];
		int sum = 0;
		for(int i=0;i<N;i++) {
			A[i] = scan.nextInt();
			sum += A[i];
		}
		int judge = sum/(4*M);
		boolean judgeF = true;
		if(sum%(4*M)>0) {
			judgeF = false;
		}
		Arrays.sort(A);
		String result = "Yes";
		int count = 0;

		for(int j=N-1;count<M;j--) {
			if(judgeF){
				if(A[j]<judge) {
					result = "No";
				}
			}else {
				if(A[j]<=judge) {
					result = "No";
				}
			}
			count++;
		}

		System.out.println(result);

	}
}