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

#include <iostream>
#include <vector>
#include <climits>
using namespace std;
int main()
{
    int n;
    cin >> n;
    vector<int> erk(100000, 0);
    vector<int> tav(100000, 0);
    int maxi = 0;
    for (int i = 0; i < n; i++)
    {
        int x,y;
        cin >> x>>y;
        erk[x]++;
        tav[y]++;
        maxi = max(y, maxi);
    }
    int veg = 0;
    int kez = 1;
    int kezdb = 1, vegb = 0;
    int ossz = 0;
    int joe = 1;
    int db = INT_MAX;
    while(kez<=maxi)
    {
        while (ossz < ((n + 1) / 2) and veg < maxi)
        {
            veg++;
            ossz += erk[veg];
        }
        if (veg == maxi and ossz < (n + 1) / 2)
            joe = 0;
        if (veg - kez + 1 < db and joe == 1)
        {
            db = veg - kez + 1;
            kezdb = kez;
            vegb = veg;
        }
        ossz = ossz - tav[kez];
        kez++;
    }
    cout << db << endl;
    cout << kezdb << " " << vegb;
}

// Run program: Ctrl + F5 or Debug > Start Without Debugging menu
// Debug program: F5 or Debug > Start Debugging menu

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//   1. Use the Solution Explorer window to add/manage files
//   2. Use the Team Explorer window to connect to source control
//   3. Use the Output window to see build output and other messages
//   4. Use the Error List window to view errors
//   5. Go to Project > Add New Item to create new code files, or Project > Add Existing Item to add existing code files to the project
//   6. In the future, to open this project again, go to File > Open > Project and select the .sln file