#include <iostream>
#include <fstream>
#include <algorithm>
#define INF 0x3f3f3f3f

using namespace std;

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

int a[50001];
int sp[50001];
int msp[50001];

int main()
{
    int n,k,smax = -INF,solSt,solDr;
    fin>>n>>k;
    for(int i = 1; i <= n; i++)
    {
        fin>>a[i];
        sp[i] = sp[i-1] + a[i];
    }

    for(int i = k; i <= n; i++)
    {
        if(sp[msp[i-1]] < sp[i-k])
            msp[i] = msp[i-1];
        else msp[i] = i-k;
        if(sp[i] - sp[msp[i]] > smax)
        {
            smax = sp[i] - sp[msp[i]];
            solDr = i;
            solSt = msp[i];
        }
    }
    fout<<solSt+1<<' '<<solDr<<' '<<smax;

    return 0;
}