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#include <fstream>
using namespace std;
ifstream f("secv2.in");
ofstream g("secv2.out");
int main()
{
int i,j,k,s[50005],x,n,imax,jmax,max,min,imin;
f>>n>>k;
f>>s[1];
max=s[1]; imax=1; jmax=1;
min=s[1]; imin=1;
for (i=2;i<=n;i++)
{
f>>x;
s[i]=s[i-1]+x;
}
for (i=k;i<=n;i++)
{
if (s[i]>max)
{
max=s[i];
imax=1; jmax=i;
}
if (s[i-k]<min)
{
min=s[i-k];
imin=i-k;
}
if (s[i]-min>max)
{
max=s[i]-min;
imax=imin+1; jmax=i;
}
}
g<<imax<<" "<<jmax<<" "<<max<<"\n";
return 0;
}