#include <stdio.h>    
long long i,n,k,x[50000],s[50000],min[50000],mm = -130000000,a,b;
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-k+1]] > mm){
	 a=min[i-k+1];
	 b=i;
	 mm=s[i] - s[min[i-k+1]];
       }

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