#include <stdio.h>

main()
{
int N, M;

scanf("%d %d", &N, &M);

int A[N];
int sum = 0;
int max = 0;

for (int i=0; i<N; i++)
{
	scanf("%d", &A[i]);
	sum += A[i];
	if (A[i] > max) { max = A[i]; }
}

int thresh = max / 4;

int selectable = 0;
for (int i=0; i<N; i++)
{
	if (A[i] >= thresh) { selectable++; }
}

if (selectable >= M)
{
	printf("Yes");
}
else
{
	printf("No");
}
}
