#include <iostream>
#include <vector>

using namespace std;

int main()
{
    vector <int> erkezes(100001, 0);
    vector <int> tavozas(100001, 0);
    int n;
    cin >> n;
    int x, y, maxi=0;
    for (int i=0;i<n;i++)
    {
        cin >> x >> y;
        erkezes[x]++;
        tavozas[y+1]++;
        if (y>maxi)
        {
            maxi=y;
        }
    }
    maxi++;
    for (int i=1;i<=maxi;i++)
    {
        erkezes[i]+=erkezes[i-1];
        tavozas[i]+=tavozas[i-1];
    }
    int start=1, stop=1;
    int okstart=0, okstop=maxi;
    int kozep=(n%2==0 ? n/2:n/2+1);
    while (stop<=maxi && start<=stop)
    {
        if (erkezes[stop]-tavozas[start]<kozep)
        {
            stop++;
        }
        else
        {
            if (stop-start<okstop-okstart)
            {
                okstop=stop;
                okstart=start;
            }
            start++;
        }

    }
    cout<<okstop-okstart+1<<endl<<okstart<<" "<<okstop;
    return 0;
}