Semi-Prime

Semi-Prime

时间： 1ms        内存：64M

描述：

Prime Number Definition
An integer greater than one is called a prime number if its only positive divisors (factors) are one and itself. For instance, 2, 11, 67, 89 are prime numbers but 8, 20, 27 are not.

Semi-Prime Number Definition
An integer greater than one is called a semi-prime number if it can be decompounded to TWO prime numbers. For example, 6 is a semi-prime number but 12 is not.

Your task is just to determinate whether a given number is a semi-prime number.

输入：

There are several test cases in the input. Each case contains a single integer N (2 <= N <= 1,000,000)

输出：

One line with a single integer for each case. If the number is a semi-prime number, then output "Yes", otherwise "No".

示例输入：

3
4
6
12

示例输出：

No
Yes
Yes
No

提示：

参考答案：

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