#include <fstream>
#include <climits>

using namespace std;

ifstream cin ("secv2.in");
ofstream cout ("secv2.out");
struct{
    long long d,p;
}d[50002];
long long n,k,i,a,s[50002];
long long r,p1,p2,p,sum;

int main() {
    cin>>n>>k;
    for(i=1;i<=n;i++){
        cin>>a;
        s[i]=s[i-1]+a;
        if(sum<1){
            sum=0;
            p=i;
        }
        sum+=a;
        d[i]={sum,p};
    }
    r=INT_MIN;
    for(i=k;i<=n;i++) {
        sum=s[i]-s[i-k+1]+d[i-k+1].d;
        if(r<sum){
            r=sum;
            p1=d[i-k+1].p;
            p2=i;
        }
    }
    cout<<p1<< ' ' <<p2<< ' ' <<r;

    return 0;
}