#include <iostream>
using namespace std;

int main(){
    int n, a[100001];
    cin >> n;
    for(int i = 1;i <= n;i++)
        cin >> a[i];
    int suma = 0, smax = 0, l = 0, st, dr;
    for(int i = 1;i <= n;i++){
        if(suma < 0)
        suma = 0, l = 0;
        suma += a[i], l++;
        if(suma > smax)
        smax = suma, st = i - l + 1, dr = i;
    }
    cout << st << ' ' << dr;
}