3564：Is It reasonable?-2
时间限制：2 S / 内存限制：65536 KB
AC：26 / Submit：98
| 问题描述 |
|---|
|
| 输入描述 |
Multiple lines, each line contains a sentence. |
| 输出描述 |
| For each sentence output YES if it is reasonable otherwise NO. |
| 样例输入复制样例 |
1+1=2 1+1=3 Today is April Fools' Day. Today is Labor Day. |
| 样例输出 |
YES NO YES NO |
| 提示说明 |
Happy April Fools' Day! |
| 相关 |
