#include<fstream>
using namespace std;
long n,k,x,poz,max1=-10000000,min1=10000000,sf,in,i,a[50001];
int main()
{
    ifstream f("secv2.in");
    ofstream g("secv2.out");
    f>>n>>k;
    for(i=1;i<=n;i++)
	{
		f>>x;
		a[i]=a[i-1]+x;
	}
    for(i=k;i<=n;i++)
    {
        if(min1>a[i-k])
        {
            min1=a[i-k];
			poz=i-k+1;
        }
        if(max1<a[i]-min1)
		{
			max1=a[i]-min1;
			in=poz;
			sf=i;
		}
    }
    g<<in<<" "<<sf<<" "<<max1;
}