#include <cstdio>
#include <deque>

#define INF 0x3f3f3f3f
#define maxN 50000

using namespace std;

int s[maxN+1];
deque <int> d;

int main(){
    freopen("secv2.in", "r", stdin);
    freopen("secv2.out", "w", stdout);
    int N, K, i, sMax, left, right;
    scanf("%d%d", &N, &K);
    for (i=1; i<=N; i++){
        scanf("%d", &s[i]);
        s[i]+=s[i-1];
    }
    sMax=-INF;
    for (i=K; i<=N; i++){
        while (!d.empty() && s[d.back()]>s[i-K])
            d.pop_back();
        d.push_back(i-K);
        if (s[i]-s[d.front()]>sMax){
            sMax=s[i]-s[d.front()];
            left=d.front()+1;
            right=i;
        }
    }
    printf("%d %d %d\n", left, right, sMax);
    return 0;
}