#include <fstream>
using namespace std;

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

int n, x;
int sum, sumMax, start;
int st, dr;

int main(){
    cin >> n;
    for (int i = 1; i <= n; i++)
    {
        cin >> x;
        if (sum < 0)
        {
            sum = 0;
            start = i;
        }
        sum += x;
        if (sum > sumMax)
        {
            sumMax = sum;
            st = start;
            dr = i;
        }
    }
    cout << st << " " << dr;
    return 0;
}