#include<fstream>
#include<iostream>
#include<climits>
using namespace std;
ifstream fin("ssm.in");
ofstream fout("ssm.out");
int main()
{
    int n,i,x,s=0,p1,p2,p,smax=INT_MIN;
    fin>>n;
    for(i=1;i<=n;i++)
    {
        fin>>x;
        if(s<0)
            s=x,p=i;
        else
            s+=x;
        if(smax<s)
            smax=s,p1=p,p2=i;
         else if(smax==s) if(p2-p1<p-i) p1=p,p2=i;
    }
    fout<<p1<<" "<<p2;
    return 0;
}