#include <stdio.h>    
long long x[50001],s[50001],min[50001],mm = -1300000000,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];

    }
    //mm = s[k];
    if(k==n) fprintf(g,"1 %lld %lld", n, s[n]);
    else{

    for(i=k;i<=n;i++)
       if(s[i] - s[min[i-1]] > mm && i-min[i-1]+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-min[i-1]+1 >= k) && j>0)j--;
	 if(s[i] - s[j] > mm && i-min[i-1]+1 >= k && j>0){
		a = j;
		b = i;
		mm=s[i] = s[j];
	 }
       }





	fprintf(g,"%lld %lld %lld\n",a,b,mm);
    }
   return 0;
}