#include <iostream>
#include <cstdio>

using namespace std;

int n,k,suma[50010],x;

void citire()
{
    scanf("%d %d\n%d", &n, &k, &suma[1]);
    for(int i=2;i<=n;i++)
        {
            scanf(" %d", &x);
            suma[i]=suma[i-1]+x;
        }
}

void parcurgere()
{
    int start=1,stop=k,minim=0,summax=suma[k];
    for(int i=1;i<=n-k;i++)
    {
        if(summax<suma[i+k]-minim)
        {
            summax=suma[i+k]-minim;
            stop=i+k;
        }
        if(minim>suma[i])
        {
            minim=suma[i];
            start=i+1;
        }
    }
    printf("%d %d %d", start, stop, summax);
}

int main()
{
    freopen("secv2.in","r",stdin);
    freopen("secv2.out","w",stdout);
    citire();
    parcurgere();
    return 0;
}