#include <cstdio>
#define N 50010
using namespace std;
int a[N],s[N],i,n,sol,start,stop,x,k,mini,sc;
int main()
{
    freopen("secv2.in","r",stdin);
    freopen("secv2.out","w",stdout);
    scanf("%d%d",&n,&k);
    for(i=1;i<=n;i++)
    {
        scanf("%d",&x);
        s[i]=s[i-1]+x;
    }
    sol=s[k];
    start=1;
    stop=k;
    mini=0;
    for(i=k+1;i<=n;i++)
    {
        if(s[i-k]<mini)
        {
            mini=s[i-k];
            start=i-k+1;
        }
        sc=s[i]-mini;
        if(sc>sol)
        {
            sol=sc;
            stop=i;
        }
    }
    printf("%d %d %d\n",start,stop,sol);
    return 0;
}