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 Ruby (judge verdict: Wrong Answer)

nums = Array.new
nums << $_.to_i while gets
nums.sort!
num_max = 1
temp_max = 1
results = Array.new
1.upto(nums.size-1) do |i|
  if i == nums.size-1
    if nums[i] == nums[i-1]
      temp_max += 1
      results << nums[i] if num_max == temp_max
      if num_max < temp_max
        results.clear
        results << nums[i]
      end
    elsif num_max == 1
      results << nums[i]
    end
  else
    if nums[i] == nums[i-1]
      temp_max += 1
    elsif num_max < temp_max
      results.clear
      results << nums[i-1]
      num_max = temp_max
      temp_max = 1
    elsif num_max == temp_max
      results << nums[i-1]
      temp_max = 1
    end
  end
end


0.upto(results.size-1) {|p| puts results[p]}