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 (2.7.1) (judge verdict: Time Limit Exceeded)

s = gets.chomp.chars
t = gets.chomp.chars

s_hash = Hash.new{[]}
s.each_with_index do |l, idx|
  s_hash[l] += [idx]
end

t_hash = Hash.new{[]}
t.each_with_index do |l, idx|
  t_hash[l] += [idx]
end

s_values = s_hash.values.select{|idxes| idxes.size > 1}
t_values = t_hash.values.select{|idxes| idxes.size > 1}

if s_values == t_values
  puts "Yes"
else
  puts "No"
end