#include<cstdio>
using namespace std;
int sp[50005];
int main()
{
    freopen("secv2.in","r",stdin);
    freopen("secv2.out","w",stdout);
    int n,k,i,x,min=0,poz,a,b,smax;
    scanf("%d%d",&n,&k);
    sp[0]=0;
    a=1;
    b=k;
    for(i=1;i<=n;i++)
    {
        scanf("%d",&x);
        sp[i]=sp[i-1]+x;
        if(i==k)
            smax=sp[k];
        if(i>=k)
        {
            if(sp[i-k]<min)
            {
                min=sp[i-k];
                poz=i-k+1;
            }
            if(sp[i]-min>smax)
            {
                a=poz;
                b=i;
                smax=sp[i]-min;
            }
        }
    }
    printf("%d %d %d",a,b,smax);
}