#include<bits/stdc++.h>

#define all(s) s.begin(),s.end()
#define rc(x) return cout<<x<<endl,0
#define forn(i,n) for(int i=0;i<int(n);i++)

#define pb push_back
#define mp make_pair
#define fr first
#define sc second

typedef long long ll;
typedef long double ld;

const int nmax=1e6+3;
const int mod=998244353;
const ll inf=0x3f3f3f3f3f3f3f3f;

using namespace std;

int main()
{
  freopen("secv2.in","r",stdin);
  freopen("secv2.out","w",stdout);
  ios_base::sync_with_stdio(0); cin.tie(0);
  int n,k;
  cin>>n>>k;
  int dp[50003],a[50003];
  for(int i=1;i<=k;i++)
  {
    cin>>a[i];
    dp[i]=a[i]+dp[i-1];
  }
  int sol=dp[k],st=1,dr=k;
  int aux=sol,x=st,y=dr;
  for(int i=k+1;i<=n;i++)
  {
    cin>>a[i];
    dp[i]=a[i]+dp[i-1];
    if(dp[i]-dp[i-k]>aux+a[i]) aux=dp[i]-dp[i-k],x=i-k+1; else aux+=a[i],y++;
    if(aux>sol) sol=aux,st=x,dr=i;
  }
  cout<<st<<" "<<dr<<" "<<sol;
}