#include<cstdio>
using namespace std;
int n,k,s[50010],i,j,a,best,besti,bestj,min,x;
int main()
{
    freopen("secv2.in","r",stdin);
    freopen("secv2.out","w",stdout);
    scanf("%d %d",&n,&k);
    best=-(1<<30);
    for(i=1;i<=n;i++)
    {
        scanf("%d",&a);
        s[i]=s[i-1]+a;
    }
    for(i=k;i<=n;i++)
    {
        if(s[i-k]<min)
        {
            min=s[i-k];
            x=i-k;
        }
        if(s[i]-min>best)
        {
            best=s[i]-min;
            besti=x+1;
            bestj=i;
        }
    }
    printf("%d %d %d\n",besti,bestj,best);
    return 0;
}