#include<fstream.h>

int i,j,ifin,jfin,n,k,v[50000];

long long h=-30000000000,s=0;

int main()

{

ifstream f("secv2.in");

ofstream g("secv2.out");

f>>n>>k;

for(i=1;i<=n;i++)f>>v[i];

for(i=1;i<=n;i++){s+=v[i];if(s>h&&i>=k){h=s;jfin=i;}

s=0;

h=-30000000000;

for(i=jfin;i>0;i--){s+=v[i];if(s>h&&(jfin-i+1)>=k){h=s;ifin=i;}}

g<<ifin<<" "<<jfin<<" "<<max;

f.close();

g.close();

return 0;

}