#include<stdio.h>
#define DIM 50003
int n,a[DIM],s[DIM],max,min,ind,sf,in,k;
void read ()
{
    int i;
    scanf("%d%d",&n,&k);
    for(i=1;i<=n;++i)
    {
        scanf("%d",&a[i]);
        s[i]=s[i-1]+a[i];
    }
}
void solve ()
{
    int i,val;
    max=val=s[k];
    for(in=ind=1,sf=k,i=k+1;i<=n;++i)
    {
        val+=a[i];
        if(s[i]-s[i-k]>val)
        {
            val=s[i]-s[i-k];
            ind=i-k+1;
        }
        if(val>max)
        {
            max=val;
            in=ind;
            sf=i;
        }
    }
    printf("%d %d %d",in,sf,max);
}
int main ()
{
    freopen("secv2.in","r",stdin);
    freopen("secv2.out","w",stdout);
    read ();
    solve ();
    return 0;
}