#include <fstream>

using namespace std;
ifstream fin ("ssm.in");
ofstream fout ("ssm.out");
int main()
{
    long n,i,smaxint,smax=-2147483648,iinc,imin,ifin,x=0,y=0,lng,maxim=-2147483648,imax;
    int check=0,check1=0;
    long mini=2147483646;
    fin>>n;
    fin>>y;
    imin=2;
    ifin=1;
    mini=y;
    iinc=1;
    smax=y;
    smaxint=y;
    for (i=1;i<n;i++)
    {
        fin>>x;
        y=y+x;
        if (y<mini)
        {
            check1=1;
            mini=y;
            imin=i+2;
            if (x>maxim)
            {
                maxim=x;
                imax=i;
            }
        }
        else
        {
            smaxint=y-mini;
            if (smaxint>smax)
            {
                iinc=imin;
                check=1;
                ifin=i+1;
                smax=smaxint;
                lng=ifin-iinc;
            }
         }
    }
    if ( n )
    {
        if (check)
            fout<<smax<<" "<<iinc<<" "<<ifin;
        else
            fout<<maxim<<" "<<imax<<" "<<imax;
    }
    else
        fout<<0<<" "<<0<<" "<<0;
    fin.close();
    fout.close();
    return 0;
}