Problem:
Score : 300 points

Problem Statement

You are given strings S and T consisting of lowercase English letters.

You can perform the following operation on S any number of times:

Operation: Choose two distinct lowercase English letters c_1 and c_2, then replace every occurrence of c_1 with c_2, and every occurrence of c_2 with c_1.

Determine if S and T can be made equal by performing the operation zero or more times.

Constraints

1 \leq |S| \leq 2 \times 10^5

|S| = |T|

S and T consists of lowercase English letters.

Input

Input is given from Standard Input in the following format:

S
T

Output

If S and T can be made equal, print Yes; otherwise, print No.

Sample Input 1

azzel
apple

Sample Output 1

Yes

azzel can be changed to apple, as follows:

Choose e as c_1 and l as c_2. azzel becomes azzle.

Choose z as c_1 and p as c_2. azzle becomes apple.

Sample Input 2

chokudai
redcoder

Sample Output 2

No

No sequences of operation can change chokudai to redcoder.

Sample Input 3

abcdefghijklmnopqrstuvwxyz
ibyhqfrekavclxjstdwgpzmonu

Sample Output 3

Yes

Solution in Ruby (2.3.3) (judge verdict: Wrong Answer)

s = gets.chomp
t = gets.chomp




	w = Hash.new()



	s.size.times do |i|
		if s[i] != t[i]
			if w.has_key?(s[i]) && s.include?(t[i])
				tmp= t[i]
				s.gsub!(t[i], s[i])
				s[i] = tmp
				
			elsif !w.has_key?(s[i]) && s.include?(t[i])
				w[s[i]] = t[i]
				w[t[i]] = s[i]
				tmp= t[i]
				s.gsub!(t[i], s[i])
				s[i] = tmp
			else
				w[s[i]] = t[i]
				w[t[i]] = s[i]

				
				s.gsub!(s[i], t[i])
				
			end
			
		end
		if s[i] != t[i]
			puts 'No'
			exit
		end

	end



if s == t
	puts 'Yes'

end