#include <stdio.h>







#define N 50000







#define INF 1500000















int s[N + 1];







int a[N + 1];















int oof( int a, int b ) {







  if ( a > b )







    return a;







  return b;







}















int main() {







  FILE *fin, *fout;







  int n, k, i, sc, smax, stmax, drmax, stc;







  fin = fopen( "secv2.in", "r" );







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







  for ( i = 1; i <= n; i ++ ) {







    fscanf( fin, "%d", &a[i] );







    s[i] = s[i - 1] + a[i];







  }







  sc = smax = s[k];







  stc = stmax = 1;







  drmax = k;







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







    fscanf( fin, "%d", &a[i] );







    s[i] = s[i - 1] + a[i];







    if ( s[i] - s[i - k] > sc + a[i] ) {







      sc = s[i] - s[i - k];







      stc = i - k + 1;







    } else {







      sc += a[i];







    }







    if ( sc > smax ) {







        smax = sc;







        stmax = stc;







        drmax = i;







    }







  }







  fclose( fin );















  fout = fopen( "secv2.out", "w" );







  fprintf( fout, "%d %d %d\n", stmax, drmax, smax );







  fclose( fout );







  return 0;







}