#include    <iostream>
#include    <fstream>

using namespace std;

int a[50005];
int s[50005], i, n, k, l, r, sum, tLeft, tRight, smax;

ifstream fin("secv2.in");
ofstream fout("secv2.out");

int main()
{
    fin >> n >> k;
    for (int i = 1; i <= n; i++)
    {
        fin >> a[i];
        s[i] = s[i-1] + a[i];
    }
    l = 1;
    r = k;

    tLeft = 1;
    tRight = k;

    sum = s[k];
    smax = sum;
    for(int i = k + 1; i <= n; i++)
    {
        if (s[i] - s[i-k] > sum + a[i])
        {
            l = i - k + 1;
            r = i;
            sum = s[i] - s[i-k];
        }
        else
        {
            sum += a[i];
            r = i;
        }
        if (sum > smax)
        {
            tLeft = l;
            tRight = r;
            smax = sum;
        }
    }
    fout << tLeft <<" "<< tRight <<" "<<smax;
    return 0;
}