#include <bits/stdc++.h>
using namespace std;

const int MAXN = 7000005;
int S[MAXN], n;

int main(void) {
    ifstream f("secvsummax.in");
    f >> n;
    for (int i = 1; i <= n; ++ i)  f >> S[i];

    int bestSum = -int(2e9), sum = 0, st, dr, idx;
    for (int i = 1; i <= n; ++ i) {
        if (sum < 0)
            sum = S[i], idx = i;
        else
            sum += S[i];
        if (bestSum < sum)
            bestSum = sum, st = idx, dr = i;
    }
    ofstream g("secvsummax.out");
    g << st << " " << dr;

    return 0;
}