#include <stdio.h>
int n,k,a[50000],s[50000],p[50000],max,p1,p2;
int main()
{
    freopen("secv2.in","r",stdin);
    freopen("secv2.out","w",stdout);
    int i,x,j;
    scanf("%d %d\n",&n,&k);
    for (i=0;i<n;i++)
        scanf("%d ",&a[i]);
    s[0]=a[0];
    for (i=1;i<k;i++)
        s[i]=s[i-1]+a[i];
    max=s[k-1];
    p1=0;
    p2=k-1;
    x=s[k-1];
    for (i=k;i<n;i++)
    {
        s[i]=s[i-1]+a[i];
        p[i]=p[i-1];
        x+=a[i];
        x-=a[i-k];
        if (x>s[i])
        {
            s[i]=x;
            p[i]=i-k+1;
        }
        /*for (j=p[i-1];i-j>=k;j++)
        {
            x-=a[j];
            if (x>s[i])
            {
                s[i]=x;
                p[i]=j+1;
            }
        }*/
        if (s[i]>max)
        {
            max=s[i];
            p1=p[i];
            p2=i;
        }
    }
    printf("%d %d %d\n",(p1+1),(p2+1),max);
    return 0;
}