#include <iostream>
#include <cstdio>

using namespace std;

int n,k,s[50001],x;

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

int main()
{
    freopen("secv2.in","r",stdin);
    freopen("secv2.out","w",stdout);

    Citire();

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

    return 0;
}