#include <fstream>

using namespace std;
ifstream f("secv2.in");
ofstream g("secv2.out");
int n,k,a[50001],b[50001],i,j,s=-50000,s2,x,y,x2,y2,S;
int main()
{
    f>>n>>k;
    for(i=1;i<=n;i++)
    {
        f>>a[i];
        b[i]=b[i-1]+a[i];
    }
    for(i=1;i<=n-k+1;i++)
    {
        if(b[i+k-1]-b[i-1]>s)
        {
            s=b[i+k-1]-b[i-1];
            x=i;
            y=i+k-1;
        }
    }
    x2=x;
    y2=y;
    for(i=y+1;i<=n;i++)
    {
        if(b[i]-b[i-1]>s2)
        {
            s2=b[i]-b[y];
            y2=i;
        }
    }
    s=s+s2;
    s2=0;
    for(i=x-1;i>=1;i--)
    {
        if((b[x-1]-b[i-1])>s2)
        {
            s2=b[x-1]-b[i-1];
            x2=i;
        }
    }
    g<<x2<<" "<<y2<<" "<<s+s2;
    return 0;
}