#include <fstream>

using namespace std;

ifstream ci ("secv2.in");
ofstream co ("secv2.out");

int v[50002], sum[50002];

int main()
{
    int n, k, i, s, max, p1=1, p2, x=1;
    ci >> n >> k;
    for(i=1; i<=k; i++)
    {
        ci >> v[i];
        sum[i]=sum[i-1]+v[i];

    }
    s=max=sum[k];
    p2=k;
    for (i=k+1; i<=n; i++)
    {
        ci >> v[i];
        sum[i]=sum[i-1]+v[i];
        if(sum[i]-sum[i-k]>s+v[i])
        {
            s=sum[i]-sum[i-k];
            x=i-k+1;
        }
        else
        {
            s+=v[i];
        }
        if(s>max)
        {
            max=s, p1=x;
            p2=i;
        }
    }
    co << p1 << " " << p2 << " " << max;
    return 0;

}