#include <iostream>
using namespace std;

int main ()
{
    int n;
    cin >> n;
    int v[n];
    for (int i = 1; i <= n; ++i){
        cin >> v[i];
    }
    int st = 1;
    int dr = 0;

    for (int i = n; i >= 1; --i){
        int j = i;
        while (j >= 1 && v[i] == v[j - 1]){
            --j;
        }
        dr = i;
        st = j;
        if (st == dr){
            i = j;
        }
        else {
            i = 0;
        }
    }
    cout << st << " " << dr;

    return 0;
}