#include <iostream>
#include<fstream>
using namespace std;
ifstream f("secv2.in");
ofstream g("secv2.out");
int v[50005];
int sum[50005];
int main()
{
    int p1,p2,p1f,p2f,sc,sm,k,n,i;
    f>>n>>k;
    sum[0]=0;
    for(i=1;i<=n;i++)
    {
        f>>v[i];
        sum[i]=sum[i-1]+v[i];
    }
    sc = sm = sum[k];
    p1 = p1f = 1;
    p2f = k;
    for(i=k+1;i<=n;i++)
    {
        if(sum[i] - sum[i-k] > sc + v[i])
        {
            sc = sum[i] - sum[i-k];
            p1 = i - k + 1;
        }
        else sc += v[i];
        if(sc>sm){
            sm=sc;
            p1f=p1;
            p2f=i;
        }
    }
    g<<p1f<<" "<<p2f<<" "<<sm;
    return 0;
}