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)

number=[]

while i = STDIN.gets
	if i == "\n"
		break
	end
	number.push(i.to_i)
end

mod=[]
for x in 0..number.size
	mod.push(number.count(number[x]))
end

answer=[]

for y in 0..number.size
	if number.count(number[y]) == mod.max
		answer.push(number[y])
	end
end

puts answer.sort.uniq