#include<cstdio>
int sp[50005];
int main(){
    int n,nr,k,min=2000000000,max=-2000000000,i,poz,start=1 ,stop;
    freopen("secv2.in","r",stdin);
    freopen("secv2.out","w",stdout);
    scanf("%d%d",&n,&k);
    stop=n;
    for(i=1;i<=n;i++)
    {
        scanf("%d",&nr);
        sp[i]=sp[i-1]+nr;
        if(i>=k)
        {
            if(sp[i-k]< min)
            {
                min=sp[i-k];
                poz=i-k+1;
            }
            if(sp[i]-min>max)
            {
                max=sp[i]-min;
                start=poz;
                stop=i;
            }
    }


    }
    printf("%d %d %d",start, stop,max);
    return 0;
}