#include <bits/stdc++.h>

using namespace std;
ifstream f("secv2.in");
ofstream g("secv2.out");
int s[100001],a[100001];
int main()
{
    long long n,k,i,co,c=0,ma=-999999,pos11=0,pos1=0,pos2=0;
    f>>n>>k;
    for(i=1;i<=n;i++) f>>a[i];
    for(co=k;co<=n;co++)
    {
        c=0;
            for(i=1;i<=n;i++)
                {
                    c++;
                    if(c==1) pos11=i;
                    if(c<=co)
                    {
                        if(i==1)s[i]=a[i];
                        else s[i]=s[i-1]+a[i];
                        s[i-1]=0;
                    }
                    else
                    {
                        c=0;
                        if(s[i-1]>=ma)
                        {
                            ma=s[i-1];
                            pos2=i-1;
                            pos1=pos11;
                        }
                        s[i-1]=0;
                        i=i-co;
                    }
                    if(i==n&&c!=0)
                        if(s[i]>ma)
                        {
                            ma=s[i];
                            pos2=i;
                            pos1=pos11;
                        }
                }
    }
    g<<pos1<<" "<<pos2<<" "<<ma;
}