#include <fstream>

using namespace std;
ifstream in("secv2.in");
ofstream out("secv2.out");
int sum[50001];
int main()
{
    int n,k,i,x,pc,sc,smax=0,pmax,umax;
    in>>n;
    in>>k;
    pc=1;
    sc=-1;
    for(i=1; i<=n; i++)
    {
        in>>x;
        sum[i]=sum[i-1]+x;
        if(i<k)continue;
        if(sum[i]-sum[i-k]>sc+x)
        {
            pc=i-k+1;
            sc=sum[i]-sum[i-k];
        }
        else
            sc+=x;
        if(sc>smax)
        {
            smax=sc;
            pmax=pc;
            umax=i;
        }
    }
    out<<pmax<<" "<<umax<<" "<<smax;
    return 0;
}