// talalkozas.cpp : This file contains the 'main' function. Program execution begins and ends there.
//

#include <iostream>
#include <queue>
#define ll long long

using namespace std;

vector<int>erk(100000);
vector<int>tav(100000);

ll i, n, a, b, mt = -1, hossz, fel, poz;
bool ok = false;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    cin >> n;

    for (i = 1; i <= n; ++i)
    {
        cin >> a >> b;
        ++erk[a];
        ++tav[b];
        if (b > mt) mt = b;
    }

    for (i = 1; i <= mt; ++i)
    {
        erk[i] += erk[i - 1];
        tav[i] += tav[i - 1];
    }

    fel = n / 2 + n % 2;
    for (hossz = 1; hossz <= mt; ++hossz)
    {
        for (i = hossz; i <= mt; ++i)
        {
            if (erk[i] - tav[i - hossz] >= fel)
            {
                poz = i;
                ok = true;
                break;
            }
        }
        if (ok) break;
    }

    cout << hossz << endl << poz - hossz + 1 << " " << poz;
}

/*
6
1 5
2 3
5 9
7 8
10 15
10 18
*/
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