Problem:
Mode Value

Your task is to write a program which reads a sequence of integers and prints mode values of the sequence.
The mode value is the element which occurs most frequently.

Input

A sequence of integers ai (1 ≤ ai ≤ 100). The number of integers is less than or equals to 100.

Output

Print the mode values. If there are several mode values, print them in ascending order.

Sample Input

5
6
3
5
8
7
5
3
9
7
3
4

Output for the Sample Input

3
5

For example, 3 and 5 respectively occur three times, 7 occurs two times, and others occur only one. So, the mode values are 3 and 5.

Solution in C# (judge verdict: Wrong Answer)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication27
{
    class Program
    {
        static void Main()
        {
            List<int> s = new List<int>();
            int x = 0;
            int y = 0;
            int z = 0;
            while (true)
            {
                string a = Console.ReadLine();
                if (a == null) break;
                int b = int.Parse(a);
                s.Add(b);
            }
            for(int c = 1; c < s[s.Count - 1]+1; c++)
            { int b;
              for( b = 0; b < s.Count; b++)
                {
                    if (s[b] == c) x++;
                }
                if (x > y) { z = c;y = x; }
            }
            Console.WriteLine(z);


        }
    }
}