#include<fstream>
using namespace std;
ifstream in("secv2.in");
ofstream out("secv2.out");

int main()
{
    int i,n,st,dr,k=1,v[50005];
    in>>n>>k;
    for(i=1;i<=n;i++)
        in>>v[i],v[i]+=v[i-1];
    int x=st=1,y=dr=k,sum=v[k],M=v[k];
    for(i=k+1;i<=n;i++)
    {
        if(v[i]-v[i-k]>sum+v[i]-v[i-1])
        {
            st=i-k+1;
            dr=i;
            sum=v[i]-v[i-k];
        }
        else
        {
            sum+=v[i]-v[i-1];
            dr=i;
        }
        if(sum>M)
            M=sum,x=st,y=dr;
    }
    out<<x<<" "<<y<<" "<<M;
    return 0;
}