# 2022 年上海市大学生程序设计竞赛 - 十月赛

A. String

Given two strings $s$ and $t$, it is possible to swap two adjacent characters in the same string at a time.

Please tell us if it is possible to make $s$ and $t$ the same after several swaps.

If yes, output “YES”, otherwise output “NO”.

### 输入格式

Two strings in two lines represent $s$ and $t$ respectively.

### 输出格式

A line of “YES” or “NO”.

### 样例

Input
ab
ba

Output
YES


### 提示

$1 \le |s|, |t| \le 1000$.

NaN