#include <bits/stdc++.h>

using namespace std;

int main()
{
    int meresSzam;
    cin >> meresSzam;

    vector<int> szamok(meresSzam+1,-2);

    for(int i = 0; i < meresSzam; i++)
    {
        cin >> szamok[i];

    }

    int longest = 0;
    int len = 0;
    bool lower = false;
    bool higher = false;

    int j;
    int start;

    for(int i = 0; i < meresSzam+1;i++) //i - start pos
    {
        len = 0;
        j = i+1;

        while(!lower && !higher)
        {
            if(szamok[i+1] == szamok[i]-1)
            {
                lower = true;
            }
            else if( szamok[i+1] == szamok[i] +1)
            {
                higher = true;
            }
            else if(szamok[i+1] == szamok[i])
            {
                i++;
                len++;
            }
            else
            {
                len = 0;
                break;
            }
        }

        while(lower)
        {
            if(szamok[j] != szamok[i] && szamok[j] != szamok[i]-1)
            {
                lower = false;
                break;
            }

            j++;
            len++;
        }
        while(higher)
        {
            if(szamok[j] != szamok[i] && szamok[j] != szamok[i]+1)
            {
                higher = false;
                break;
            }

            j++;
            len++;
        }

        //cout << i << "-" << len << "\n";

        if(len > longest)
        {
            longest = len;
            start = i;
        }

    }

    cout << longest << " " << start;

}