#include<fstream>
using namespace std;
ifstream cin("secv2.in");
ofstream cout("secv2.out");
int n, A[50100],k;
int main(){
	cin >>n>>k>>A[1];
	for(int i=2;i<=n;i++){
		cin >>A[i];
		A[i]+=A[i-1];
	}
	int st = 1,dr = 1,maxs=-2000000000,mins=0,minp=0;
	for(int i = k ;i<=n;i++){
		if(A[i]-mins>maxs){
			maxs = A[i]-mins;
			st = minp+1;
			dr = i;
		}
		if(A[i-k+1]<mins){
			minp = i - k + 1;
			mins = A[i-k+1]; 	
		}
	}
	cout << st << " " << dr << " " << maxs;
}