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 C# (Mono 4.6.2.0) (judge verdict: Wrong Answer)

using System;
using System.IO;
using System.Linq;
using System.Collections.Generic;


namespace AtCoder{

class Program{

static void Main(string[] args){

var answer = "War";

var line1 = Console.ReadLine().ToCharArray();
var line2 = Console.ReadLine().ToCharArray();

var hashline1 = line1.Distinct().ToArray();
var hashline2 = line2.Distinct().ToArray();

int count = 0;

int sort1 = hashline1.Count();
int sort2 = hashline2.Count();


if(sort1 == sort2){

answer = "Yes";
for(int i = 0;i < line1.Length;i++){

count += line1[i]!=line2[i]?1:0;

}
answer = count%2==0?"Yes":"No";

}
else{

answer = "No";

}

Console.WriteLine(answer);
}

}

}