01.7.1.2.MissCat

using System;

class MissCat
{
    static void Main()
    {
        int userNumberN = int.Parse(Console.ReadLine());
        int[] numbers = new int[userNumberN];

        for (int i = 0; i < userNumberN; i++)
        {
            numbers[i] = int.Parse(Console.ReadLine());
        }
        Array.Sort(numbers); // сортиране на масива - важно
        int currentCount = 1;
        int bestCount = 1;
        int mostFrequentNumber = 0;
        for (int i = 0; i < numbers.Length - 1; i++)
        {
            if (numbers[i] == numbers[i + 1])
            {
                currentCount++;
                if (bestCount < currentCount)
                {
                    bestCount = currentCount;
                    mostFrequentNumber = numbers[i];
                }
            }
            else
            {
                currentCount = 1;
            }
        }

        if (bestCount>1)
        {
            Console.WriteLine(mostFrequentNumber);
        }
        else if (bestCount==1)
        {
            Console.WriteLine(numbers[0]);
        }

        //Console.WriteLine("The most frequent number is: " + mostFrequentNumber);
        //Console.WriteLine("Frequency: " + bestCount);
    }
}