#include <cstdio>

int s[50001],k,smax,n,i,x,mn,sum,stanga,dreapta,stanga_pos;

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",&x);
        s[i]=s[i-1]+x;
    }
    mn=2000000000;
    for (i=k+1; i<=n; i++)
    {
        if (mn>s[i-k]) { mn=s[i-k];stanga_pos=i-k+1;}
        sum=s[i]-mn;
        if (sum>smax) { smax=sum; stanga=stanga_pos; dreapta=i;}
    }
    printf("%d %d %d",stanga,dreapta,smax);
    return 0;
}