#include <iostream>
#include <fstream>
using namespace std;
ifstream f("secv2.in");
ofstream g("secv2.out");
int n,k,x,ii;
long long dps[50005],summax,sum;
int main()
{
    f>>n>>k;
    for(int i=1;i<=n;i++)
    {
        f>>x;
        if(i>=k)
           dps[i]=x+dps[i-1]-dps[i-k];
        else dps[i]=x;
        if(dps[i]>summax)
        {
            ii=i;
            summax=dps[i];
        }
    }
    g<<ii-k-1<<" "<<ii<<" "<<summax;
    return 0;
}