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#include <fstream>
using namespace std;
ifstream in("secv2.in");
ofstream out("secv2.out");
int sum[50001];
int main()
{
int n,sc=0,ic = 1,imax=0,jmax=0,smax,x,k;
smax=1<<31;
in>>n>>k;
for(int i=1; i<=n; i++)
{
in>>x;
sum[i]=sum[i-1]+x;
if(i >= k && sc+x<sum[i]-sum[i-k])
{
sc=sum[i]-sum[i-k];
ic=i-k+1;
}
else
{
sc+=x;
}
if(i>= k && sc>smax)
{
smax=sc;
jmax=i;
imax=ic;
}
}
out<<imax<<' '<<jmax<<' '<<smax;
return 0;
}