#A610. A == B

A == B

Problem Description

Give you two numbers AA and BB, if AA is equal to BB, you should print YES, or print NO.

Input

each test case contains two numbers AA and BB.

Output

for each case, if AA is equal to BB, you should print YES, or print NO.

Samples

1 2
2 2
3 3
4 3
NO
YES
YES
NO

提示

你的代码要能正确处理以下几种代表形式及组合:

5.0 5. 5 0.5 .5 0.50 +5 500.0000 -5.0 -5. -5 -0.5 -.5 -.50

后台输入数据确保可作为 C++/JavaC++/Java 的数字常量使用。

本题情况较多,如果多次不过建议先跳过。建议放到最后来做。