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#include <bits/stdc++.h>
#define maxn 50000
using namespace std;
ifstream fin("secv2.in");
ofstream fout("secv2.out");
long long n, k, v[maxn+2], maxim=LLONG_MIN, posi, posj;
deque<long long>dq;
int main()
{
fin>>n>>k;
for(int i=1; i<k; i++)
{
fin>>v[i];
v[i]+=v[i-1];
}
for(int i=k; i<=n; i++)
{
fin>>v[i];
v[i]+=v[i-1];
while(!dq.empty()&&v[i-k]<v[dq.back()]) dq.pop_back();
dq.push_back(i-k);
if(v[i]-v[dq.front()]>maxim)
{
maxim=v[i]-v[dq.front()];
posi=i;
posj=dq.front()+1;
}
}
fout<<posj<<' '<<posi<<' '<<maxim<<'\n';
return 0;
}