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 t = 0; int[] A = new int[N];
        for(int i=0;i<N;i++){
            A[i] = sc.nextInt();
            t = t + A[i];
        } int count = 0;
        for(int i=0;i<N;i++){ if (A[i] >= (t * 0.25/ M)) count++;}
        if(count>=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 t = 0; int[] A = new int[N];
        for(int i=0;i<N;i++){
            A[i] = sc.nextInt();
            t = t + A[i];
        } int count = 0;
        for(int i=0;i<N;i++){ if (A[i] >= (t * 0.25/ M)) count++;}
        if(count>=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 t = 0; int[] A = new int[N];
        for(int i=0;i<N;i++){
            A[i] = sc.nextInt();
            t = t + A[i];
        } int count = 0;
        for(int i=0;i<N;i++){ if (A[i] >= (t * 0.25/ M)) count++;}
        if(count>=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 t = 0; int[] A = new int[N];
        for(int i=0;i<N;i++){
            A[i] = sc.nextInt();
            t = t + A[i];
        } int count = 0;
        for(int i=0;i<N;i++){ if (A[i] >= (t * 0.25/ M)) count++;}
        if(count>=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 t = 0; t 0 int[] A = new int[N]; A new int[N] N for(int i=0;i<N;i++){
            A[i] = sc.nextInt();
            t = t + A[i];
        } int i=0; int i=0; i 0 i<N i N i++ i++ i {
            A[i] = sc.nextInt();
            t = t + A[i];
        } {
            A[i] = sc.nextInt();
            t = t + A[i];
        } A[i] = sc.nextInt() A[i] A i sc.nextInt() sc.nextInt sc t = t + A[i] t t + A[i] t A[i] A i int count = 0; count 0 for(int i=0;i<N;i++){ if (A[i] >= (t * 0.25/ M)) count++;} int i=0; int i=0; i 0 i<N i N i++ i++ i { if (A[i] >= (t * 0.25/ M)) count++;} { if (A[i] >= (t * 0.25/ M)) count++;} if (A[i] >= (t * 0.25/ M)) count++; A[i] >= (t * 0.25/ M) A[i] A i (t * 0.25/ M) t * 0.25 t 0.25 M count++ count if(count>=M) System.out.println("Yes");
        else System.out.println("No"); count>=M count M System.out.println("Yes") System.out.println System.out System System.out "Yes" 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 t = 0; int[] A = new int[N];
        for(int i=0;i<N;i++){
            A[i] = sc.nextInt();
            t = t + A[i];
        } int count = 0;
        for(int i=0;i<N;i++){ if (A[i] >= (t * 0.25/ M)) count++;}
        if(count>=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 t = 0; int[] A = new int[N];
        for(int i=0;i<N;i++){
            A[i] = sc.nextInt();
            t = t + A[i];
        } int count = 0;
        for(int i=0;i<N;i++){ if (A[i] >= (t * 0.25/ M)) count++;}
        if(count>=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 t = 0; int[] A = new int[N];
        for(int i=0;i<N;i++){
            A[i] = sc.nextInt();
            t = t + A[i];
        } int count = 0;
        for(int i=0;i<N;i++){ if (A[i] >= (t * 0.25/ M)) count++;}
        if(count>=M) System.out.println("Yes");
        else System.out.println("No"); }
}