#include<stdio.h>
using namespace std;

int main()
{
freopen("secv2.in","r",stdin);
freopen("secv2.out","w",stdout);
int n,k,v[50001],i,bestsum=-int(2e9),idx,st,sf,min=0;
scanf("%d%d",&n,&k);
for(i=1;i<=n;i++)scanf("%d",&v[i]);
for(i=1;i<=n;i++)
    {
    v[i]+=v[i-1];
    if( (bestsum<v[i]-min) && ( (i-idx)>=k) )
        {
        bestsum=v[i]-min;
        st=idx+1;
        sf=i;
        }
    if(v[i]<min)
        {
        min=v[i];
        idx=i;
        }
    }
printf("%d %d %d",st,sf,bestsum);
return 0;
}