P17310 [HackerRank] Prime sum
普及
题目描述

The problem is quite simple. You're given a number N and a positive integer K. Tell if N can be represented as a sum of K prime numbers (not necessarily distinct).

Input Format

The first line contains a single integer T, denoting the number of test cases.

Each of the next T lines contains two positive integers, N & K, separated by a single space.

Output Format

For every test case, output "Yes" or "No" (without quotes).

Constraints

1 <= T <= 5000

1 <= N <= 10^{12}

1 <= K <= 10^{12}

Sample Input

2
10 2
1 6

Sample Output

Yes
No

Explanation

In the first case, 10 can be written as 5 + 5, and 5 is a prime number.
In the second case, 1 cannot be represented as a sum of prime numbers, because there are no prime numbers less than 1.

输入格式

见题面

输出格式

见题面

样例输入
2 10 2 1 6
样例输出
Yes No