#include "stdio.h"

FILE *f, *g;
int n, k;
int a[50001];
int s[50001];
int start, end, sum, pos_min, index;

int main()
{
	f = fopen("secv2.in", "r");
	g = fopen("secv2.out", "w");

	fscanf(f, "%d", &n);
	fscanf(f, "%d", &k);

	for(int i = 1; i <= n; i++)
		fscanf(f, "%d", &a[i]);

	s[0] = 0;
	s[1] = a[1];

	for(int i = 2; i <= n; i++)
	{
		s[i] = s[i-1] + a[i];
	}

	start = 0;
	end = k;
	sum = s[k];
	pos_min = 0;
	index = 0;

	for(int i = k+1; i <= n; i++)
	{
		index = index + 1;

		if(s[index] < s[pos_min])
			pos_min = index;

		if(s[i] - s[pos_min] > sum)
		{
			sum = s[i] - s[pos_min];
			start = pos_min;
			end = i;
		}
	}

	start = start + 1;

	fprintf(g, "%d %d %d", start, end, sum);

	fclose(f);
	fclose(g);

	return 0;
}