#include <bits/stdc++.h>

using namespace std;
ifstream in("secv2.in");
ofstream out("secv2.out");
long long n,x,l,s[50100],p,r,Min,Max=-2000000,k;
int main()
{
    in>>n>>k;
    Min=0;
    for(int i=1;i<=n;i++)
    {
        in>>x;
        s[i]=s[i-1]+x;
        if(i>=k)
        {
            if(s[i]-Min>Max)
            {
                Max=s[i]-Min;
                l=p+1;
                r=i;
            }
            if(s[i-k+1]<Min) Min=s[i-k+1],p=i-k+1;
        }
    }
    out<<l<<" "<<r<<" "<<Max;
    return 0;
}