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#include<fstream>
using namespace std;
ifstream fin("secv2.in");
ofstream fout("secv2.out");
int main(){
int n,k,x,p=0,st,dr;
fin>>n>>k;
long long s[50001],mn=0,best=-2100000000;
s[0]=0;
for(int i=1;i<=n;i++){
fin>>x;
s[i]=s[i-1]+x;
}
for(int i=k;i<=n;i++){
if(s[i-k]<mn){
mn=s[i-k];
p=i-k;
}
if(s[i]-mn>best){
best=s[i]-mn;
st=p+1;
dr=i;
}
}
fout<<st<<" "<<dr<<" "<<best;
}