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#include <iostream>
#include <algorithm>
#include <deque>
#include <fstream>
using namespace std;
ifstream fin("secv2.in");
ofstream fout("secv2.out");
const int MAXN=50005;
int n,k,v[MAXN],s[MAXN],miny,maxy=-((1<<31)-1),st,dr,stMin;
int main()
{
fin>>n>>k;
for(int i=1; i<=n; i++)
{
fin>>v[i];
s[i]+=s[i-1]+v[i];
}
for(int i=k; i<=n; i++)
{
if(s[i-k]<miny)
{
miny=s[i-k];
stMin=i-k+1;
}
if(maxy<s[i]-miny)
{
maxy=s[i]-miny;
st=stMin;
dr=i;
}
}
fout<<st<<" "<<dr<<" "<<maxy;
}