#include<stdio.h>
int main(void){
  int n,m,a[101],i,s,sum,b[1001];
  scanf("%d %d",&n,&m);
  s=0;
  sum=0;
  for(i=0;i<n;i++){
    scanf("%d",&a[i]);
    s=s+a[i];
  }
  for(i=1;i<=1000;i++){
    b[i]=0;
  }
  for(i=0;i<n;i++){
    b[a[i]]++;
  }
  for(i=1000;i>=1;i--){
    if(b[i]>0){
      sum+=b[i];
      printf("%d\n",i);
    }
    if(b[i]!=0&&i<s/(4*m)){
      printf("No\n");
      break;
    }
    if(sum>=m){
      printf("Yes\n");
      break;
    }
  }
  return 0;
}
