#include <bits/stdc++.h>

using namespace std;

inline void Open(const string Name) {
    #ifndef ONLINE_JUDGE
        (void)!freopen((Name + ".in").c_str(), "r", stdin);
        (void)!freopen((Name + ".out").c_str(), "w", stdout);
    #endif
}

int a[50001];
int N, K, sum = INT_MIN, l, r, idx;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    Open("secv2");

    cin >> N >> K;
    for(int i = 1;i <= N;i++)
        cin >> a[i], a[i] += a[i - 1];

    for(int i = K;i <= N;i++) {
        if(sum < a[i] - a[idx]) {
            sum = a[i] - a[idx];
            l = idx + 1, r = i;
        }

        if(a[i - K + 1] < a[idx])
            idx = i - K + 1;
    }

    cout << l << " " << r << " " << sum;
    
    return 0;
}