#include<stdio.h>
int N,K,a[50050],d[50050],ind1,ind2;
int main()
{
    freopen("secv2.in","r",stdin);
    freopen("secv2.out","w",stdout);
    scanf("%d%d",&N,&K);
    for(int i=1;i<=N;++i)
    {
        scanf("%d",&a[i]);
        a[i]=a[i]+a[i-1];
    }
    int f=1;
    int b=0;
    int ma=-25.000*K;
    for(int i=0;i<=N-K;++i)
    {
        while((f<=b)&&(a[i]<=a[d[b]]))
            --b;
        ++b;
        d[b]=i;
        if(i>=K)
            if(a[i+K]-a[d[f]]>ma)
            {
                ma=a[i+K]-a[d[f]];
                ind1=d[f]+1;
                ind2=i+K;
            }
    }
    printf("%d %d %d",ind1,ind2,ma);
}