#include<stdio.h>
int main(){
  int n,m,s=0,t=0;
  scanf("%d %d",&n,&m);
  int a[n+1];
  for(int i=1;i<=n;i++)scanf("%d",&a[i]);
  
  for(int i=1;i<=n;i++){
    s+=a[i];
  }
  for(int i=1;i<=n;i++){
    if(s%(4*m)==0){
      if(a[i]>=s/(4*m))t+=1;
    }
    if(s%(4*m)!=0){
      if(a[i]>s/(4*m))t+=1;
    }
  }
  if(t>=m){
    printf("Yes");
  }else{
    printf("No");
  }
  return 0;
}
