using System;

public class Program

{

    public static void Main()

    {

        int n = int.Parse(Console.ReadLine());

        int games = n * (n - 1) / 2;

        int[,] results = new int[n, n];

        for(int i = 0; i < games - 1; i++)

        {

            string[] input = Console.ReadLine().Split(' ');

            int winner = int.Parse(input[0]);

            int loser = int.Parse(input[1]);

            results[winner - 1, loser - 1] = 1;

        }

        int sleeper1 = -1;

        int sleeper2 = -1;

        for(int i = 0; i < n - 1; i++)

        {

            for(int j = i + 1; j < n; j++)

            {

                if(results[i, j] == 0 && results[j, i] == 0)

                {

                    sleeper1 = i;

                    sleeper2 = j;

                    break;

                }

            }

            if(sleeper1 != -1)

            {

                break;

            }

        }

        for(int i = 0; i < n; i++)

        {

            if(i != sleeper1 && i != sleeper2)

            {

                if(results[sleeper1, i] == 1 && results[sleeper2, i] == 0)

                {

                    Console.WriteLine((sleeper1 + 1) + " " + (sleeper2 + 1));

                    return;

                }

                if(results[sleeper1, i] == 0 && results[sleeper2, i] == 1)

                {

                    Console.WriteLine((sleeper2 + 1) + " " + (sleeper1 + 1));

                    return;

                }

            }

        }

        Console.WriteLine((sleeper1 + 1) + " " + (sleeper2 + 1));

    }

}