#include <stdio.h>
long long x[50001],s[50001],min[50001],mm = -1250000000,a,b,i,j,n,k;
int main(){

    FILE*f=fopen("secv2.in","r");
    FILE*g=fopen("secv2.out","w");

    fscanf(f,"%lld %lld %lld",&n,&k,&x[1]);

    s[1] = x[1];
    min[1] = 1;


    for(i=2;i<=n;i++){

	fscanf(f,"%lld",&x[i]);
	s[i] = s[i-1] + x[i];

	if(s[i]<s[min[i-1]]) min[i] = i;
	else min[i] = min[i-1];

    }


    for(i=k;i<=n;i++)
       /*if(s[i] - s[min[i-1]] > mm && i-min[i-1] >= k){
	 a=min[i-1]+1;
	 b=i;
	 mm=s[i] - s[min[i-1]];
       } else {*/

       {
	 j = min[i-1];
	 while(!(s[i] - s[j] > mm && i-j >= k) && j>0)j--;
	 if(s[i] - s[j] > mm && i-j >= k && j>=0){
		//if(j==0)j=1;
		a = j+1;
		b = i;
		mm=s[i] - s[j];
	 }
       }


	fprintf(g,"%lld %lld %lld \n",a,b,mm);

   return 0;
}