#include <stdio.h>
int main(){
  int n,out,count=0;
  scanf("%d %d",&n,&out);
  int a[n],sum=0;
  for(int i=0;i<n;i++){
    scanf("%d",&a[i]);
    sum=sum+a[i];
  }
  for(int i=0;i<n;i++){
    if(a[i]>=sum/4){
      count++;
    }else{
    }
  }
  if(count>=out){
    printf("Yes");
  }else{
    printf("No");
  }
  return 0;
}