Anti-knapsack

Description:

Input:

The first line contains the number of test cases $$$T$$$ ($$$1 \le T \le 100$$$).

Each of the next $$$T$$$ lines contains two integers $$$n$$$ and $$$k$$$ ($$$1 \le k \le n \le 1000$$$) — the description of test cases.

Output:

For each test case output two lines. In the first line output a single integer $$$m$$$ — the number of chosen integers.

In the second line output $$$m$$$ distinct integers from $$$1$$$ to $$$n$$$ — the chosen numbers.

If there are multiple answers, print any. You can print the numbers in any order.

Sample Input:

3
3 2
5 3
1 1

Sample Output:

2
3 1 
3
4 5 2 
0