Give you two numbers $A$ and $B$, check $A$ is equal to $B$.
输入格式
**Multiple test cases, please process to the End Of File.**
Each test case occupies one line, contains two numbers $A$ and $B$.
It is guaranteed that the **length** of each number does not exceed $12003$.
输出格式
For each test case, output a string in one line. If $A$ is equal to $B$, output `YES`, otherwise output `NO`.