#include <bits/stdc++.h>

using namespace std;

using ll = long long;
#define pb push_back
#define dbg(x) cerr << #x << " " << x << "\n"

const int N = 5e4, INF = 2e9;
int sum[1 + N];

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

    ios::sync_with_stdio (false);
    cin.tie (0); cout.tie (0);

    int n, k;
    cin >> n >> k;
    int bestIndex = 0;
    int ans = -INF, ansL = 0, ansR = 0;
    for (int i = 1; i <= n; i++) {
        int x;
        cin >> x;
        sum[i] = sum[i - 1] + x;
        if (i > k && sum[bestIndex] > sum[i - k])
            bestIndex  = i - k;
        if (sum[i] - sum[bestIndex] > ans) {
            ans = sum[i] - sum[bestIndex];
            ansL = bestIndex + 1;
            ansR = i;
        }
    }
    cout << ansL << " " << ansR << " " << ans << "\n";
    return 0;
}