#include<bits/stdc++.h>
using namespace std;
ifstream fin("secv2.in");
ofstream fout("secv2.out");
long long sum[50001];
int n,i,p,pi,pf,k,s=INT_MAX,maxsum=INT_MIN;
int main()
{
    fin>>n>>k;
    for(i=1; i<=n; ++i)
    {
        fin>>sum[i];
        sum[i]+=sum[i-1];
    }
    for(i=k; i<=n; ++i)
    {
        if(sum[i-k]<s)
        {
            s=sum[i-k];
            p=i-k+1;
        }
        if(sum[i]-s>maxsum)
        {
            maxsum=sum[i]-s;
            pi=p;
            pf=i;
        }
    }
    fout<<pi<<" "<<pf<<" "<<maxsum;
    return 0;
}