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: Accepted)

file = $stdin
lines = file.readlines
file.close

groupedInput = lines.group_by{|i| i % 100}
tmpMax = groupedInput.max_by{|_, val| val.length}
maxNum = groupedInput.select{|key, val| val.length == tmpMax[1].length}.keys

maxNum.each do |i|
	p i.to_i
end