#include <fstream>

using namespace std;

ifstream cin("secvsummax.in");
ofstream cout("secvsummax.out");

int v[100001];

int main()
{
    int n,i,p1,p1f,p2f,s,smax=-1;
    cin>>n;
    for(i=1;i<=n;i++)
        cin>>v[i];
    s=0;
    p1=1;
    for(i=1;i<=n;i++)
    {
        if(s<0)
        {
            s=0;
            p1=i;
        }
        s+=v[i];
        if(s>smax)
        {
            smax=s;
            p1f=p1;
            p2f=i;
        }
    }
    cout<<p1f<<" "<<p2f;
    return 0;
}