#include <fstream>
#include <deque>
#include <cstring>
using namespace std;

ifstream is("secv2.in");
ofstream os("secv2.out");

int n, k, a[50001], s[50001];
int be, en, ma = -0x3f3f3f3f;
char d[3500005];
deque<int> q;

void READ();


int main()
{
    READ();
    int st = 1, dr = k, sum = s[k];
    for ( int i = k + 1; i <= n; ++i )
    {
        if ( s[i] - s[i - k] > sum + a[i] )
        {
            sum = s[i] - s[i - k];
            st = i - k + 1;
            dr = i;
        }
        else
        {
            sum += a[i];
            ++dr;
        }
        if ( sum > ma )
        {
            ma = sum;
            be = st;
            en = dr;
        }
    }
    os << be << " " << en << " " << ma;
    is.close();
    os.close();
    return 0;
}


void READ()
{
    is >> n >> k;
    is.get();
    is.getline(d, 3500005, '\n');
    int m = strlen(d) - 1;
    int cnt = 1, semn;
    for ( int i = 0; i <= m; ++i )
    {
        semn = 1;
        if ( d[i] == '-' )
        {
            semn = -1;
            ++i;
        }
        while ( d[i] != ' ' && i <= m )
        {
            a[cnt] = a[cnt] * 10 + ( d[i] - '0' );
            ++i;
        }
        a[cnt] *= semn;
        s[cnt] = s[cnt - 1] + a[cnt];
        ++cnt;
    }
}