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: Accepted)

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

namespace CSharpSample01
{

    class Program
    {
        static int[] data; 
                   
        static void Main(string[] args)
        {
            data = new int[101];
            int max = 0;

            while (true)
            {
                string str = Console.ReadLine();

                if (String.IsNullOrEmpty(str))
                {
                    break;
                }
                else
                {
                    int key = int.Parse(str);
                    data[key]++;
                    
                    if(max <= data[key])
                    {
                        max = data[key];                       
                    }
                }

            }
            
            for(int i = 0; i < 101; i++)
            {
                if(max == data[i])
                {
                    Console.WriteLine(i);
                }
            }
           

        }
    }
}