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


int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int n;
    cin >> n;
    vector<int> a(n+1);
    for(int i = 1; i <= n; i++) {
        cin >> a[i];
    }

    int regi = a[1], uj = a[1];
    int length = 1;
    int maxlength = 1;
    int maxi = 0, most = 1;
    for(int i = 2; i <= n; i++) {
        if(regi == uj) {
            if(abs(a[i]-uj) <= 1) {
                uj = a[i];
                length++;
            } else {
                //maxlength = max(maxlength, length);
                if (maxlength < length) {
                    maxlength = length;
                    maxi = most;
                }
                uj = regi = a[i];
                most = i;
                length = 1;
            }
        } else {
            if(a[i] != uj && a[i] != regi) {
                if (maxlength < length) {
                    maxlength = length;
                    maxi = most;
                }
                uj = regi = a[i];
                most = i;
                length = 1;
            } else {
                length++;
            }
        }
    }

    cout << maxlength << ' ' << maxi << endl;


}