#include<stdio.h>
using namespace std;
const int N = 50005;
int sume[N];
int main ()
{
    FILE *in, *out;
    in = fopen ("secv2.in", "r");
    out = fopen ("secv2.out", "w");
    int n, k, s, maxim;
    fscanf (in, "%d%d", &n, &k);
    int i, x;
    for (i = 1; i <= k; i++)
    {
        fscanf (in, "%d", &x);
        sume[i] = sume[i - 1] + x;
    }
    maxim = sume[k];
    s = maxim;
    int stc = 1, stf = 1, drf = k;
    for (i = k + 1; i <= n; i++)
    {
        if (sume[i - k] - sume[stc - 1] < 0)
        {
            s -= (sume[i - k] - sume[stc - 1]);
            stc = i - k + 1;
        }
        fscanf (in, "%d", &x);
        s += x;
        sume[i] = sume[i - 1] + x;
        if (maxim < s)
        {
            maxim = s;
            stf = stc;
            drf = i;
        }

    }
    fprintf (out, "%d %d %d", stf, drf, maxim);
    return 0;
}