#include<cstdio>
#define nmax 500010
int main()
{	
	int min=30000,i,n,k,front,back,deque[nmax],a[nmax];
	freopen("secventa.in","r",stdin);
	freopen("secventa.out","w",stdout);
	scanf("%d%d",&n,&k);
	
	for(i=1;i<=n;i++)
		scanf("%d",&a[i]);
	front=1;back=0;
	for(i=1;i<=n;i++)
	{
		while(front<=back&&a[i]<=a[deque[back]]) back--;
		deque[++back]=i;
		
		if(deque[front]==i-k)
			front++;
		
		if(i>=k&&min>a[deque[front]]) min=a[deque[front]]; 
	}

printf("%d",min);
return 0;
}