#include <iostream>
#include <fstream>
#define inf 0x3f3f3f3f

using namespace std;

int k,i,n,best,max1,end1,beg1,beg,min1,v[50002],s[50002];
    ifstream f("secv2.in");
    ofstream g("secv2.out");
int main()
{
    f>>n>>k;
      for(i=1;i<=n;i++)
        {
         f>>s[i];
         s[i]=s[i-1]+s[i];
        }
        min1=inf;
        max1=-inf;
        for(i=k;i<=n;i++)
        {
            if(s[i-k]<min1)
            {
                min1=s[i-k];
                beg=i-k+1;
            }
            if(s[i]-min1>max1)
            {
                max1=s[i]-min1;
                beg1=beg;
                end1=i;
            }
        }


g<<beg1<<" "<<end1<<" "<<max1;
return 0;
}