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 Volume0_0028
{
    class Program
    {
        static Dictionary<int, int> dic = new Dictionary<int, int>();
        static void Main(string[] args)
        {
            string input;
            while ((input = Console.ReadLine()) != null)
            {
                int num = Convert.ToInt32(input);
                if (dic.ContainsKey(num)) dic[num]++;
                else dic.Add(num, 1);
            }
            int max = dic.Values.Max();

            foreach (var keyPair in dic.Where(kp => kp.Value == max).OrderBy(kp => kp.Key))
            {
                Console.WriteLine(keyPair.Key);
            }
        }
    }
}