#include<cstdio>
int s,u,p,a[5000007],i,n,k,x;
int main()
{
    freopen("deque.in","r",stdin);
    freopen("deque.out","w",stdout);
    scanf("%d%d",&n,&k);
    p=1;
    u=1;
    a[1]=-1000000;
    for(i=1;i<=n;i++)
    {
        scanf("%d",&x);
        if(a[u]<=x)
        {
            a[u]=x;
            u++;
        }
        else
        {
            while(a[u]>x)
            {
                u--;
            }
            a[u]=x;
        }
        if(u-p+1==k)
        {
            printf("%d\n",a[p]);
            s+=a[p];
            p++;
        }
    }
    printf("%d",s);
    return 0;
}