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

    return 0;
}