#include <stdio.h>
int v[50001],s[50001];
int main()
{
    int n,i,k,max,secv,x,y,j;
    freopen("secv2.in","r",stdin);
    freopen("secv2.out","w",stdout);
    scanf("%d%d",&n,&k);
    for(i=1; i<=n; i++)
    {
        scanf("%d",&v[i]);
        s[i]=s[i-1]+v[i];
    }
    max=secv=s[k];
    x=j=1;
    y=k;
    for(i=k+1; i<=n; i++)
    {
        if(secv+v[i]<s[i]-s[i-k])
        {
            secv=s[i]-s[i-k];
            j=i-k+1;
        }
        else
            secv+=v[i];
        if(max<secv)
        {
            max=secv;
            x=j;
            y=i;
        }
    }
    printf("%d %d %d\n",x,y,max);

    return 0;
}