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.Linq;

class AOJ {
  static void Main(string[] args)
  {
    string s;
    int[] x = new int[101];
    int max;

    while ((s = Console.ReadLine()) != null)
      x[int.Parse(s)]++;

    max = x.Max();

    for (int i = 1; i < 101; i++) {
      if (max == x[i])
        Console.WriteLine(i);
    }
  }
}