using System;

public class Program

{

    public const int MaxYear = 2051;

    public const int MinYear = 1950;

    public static int FindMaxPopulationYear(int[][] logs) {

        int[] year = new int[MaxYear];

        foreach (var log in logs)

        {

            year[log[0]] += 1;

            year[log[1]] -= 1;

        }

        int maxNum = year[MinYear], maxYear = MinYear;

​

        for(int i = MinYear + 1; i < year.Length; i++)

        {

            year[i] += year[i - 1]; 

            if(year[i] > maxNum)

            {

                maxNum = year[i];

                maxYear = i;

            }

        }

        return maxYear;

    }

    public static void Main()

    {

        Console.WriteLine("UniLecs");

        // tests

        var arr = new int[][] 

        {

            new int[] { 1992, 1998 },

            new int[] { 1999, 2009 }

        };

        Console.WriteLine(FindMaxPopulationYear(arr).ToString()); // 1992

        arr = new int[][] 

        {

            new int[] { 1950, 1961 },

            new int[] { 1960, 1971 },

            new int[] { 1970, 1981 }

        };

        Console.WriteLine(FindMaxPopulationYear(arr).ToString()); // 1960

    }

}