#include<cstdio>
#define nmax 50005
using namespace std;
int i,s[nmax],n,k,min,best=1<<31,a,b,aux;
int main()
{
    freopen("secv2.in","r",stdin);
    freopen("secv2.out","w",stdout);
    scanf("%d%d",&n,&k);
    for(i=1;i<=n;i++) scanf("%d",&s[i]);
    for(i=1;i<=n;i++)
    {
        s[i]+=s[i-1];
        if(i>=k)
        {
            if(s[i-k]<min)
            {
                min=s[i-k];
                aux=i-k;
            }
            if(s[i]-min>best)
            {
                best=s[i]-min;
                a=aux+1;
                b=i;
            }
        }
    }
    printf("%d %d %d\n",a,b,best);
    return 0;
}