#include <stdio.h>
#define NMAX 50001




int main()
{
	freopen("secv2.in", "r", stdin);
	freopen("secv2.out", "w", stdout);
	int n, k, x[NMAX], max, beg, end, b;
	int i, j, s;
	scanf("%d%d", &n, &k);
	for (i = 1; i <= n; i++)
		scanf("%d", &x[i]), x[i]+=x[i-1];

	max = x[k], b =beg = 0, end = k;

	for (i = k+1; i <= n; i++)
	  {	for (j = i-k; j >= beg; j--)
			{ s = x[i]-x[j];
			  if (s > max)
				max = s, b = j, end = i;
			}
		beg=b;
	  }


	printf("%d %d %d\n", b+1, end, max);
	return 0;

 }