Swap Two Numbers

Take two numbers as input and swap them and print the swapped values.

Input Format:

The first line of input contains a single integer 't', representing the total number of test cases.

The second line of input contains two integers 'a' and 'b', representing the second number. 

Output Format:

The first line of output prints the swapped value of 'a' and 'b'.

Note:

You do not need to print anything, it has already been taken care of. Just implement the given function.

Constraints:

1 <= 'T' <= 10^2
-10^5 <= 'a', 'b' <= 10 ^ 5

Time Limit: 1 sec

Sample Input 1:

2
1 2 
3 4

Sample Output 1:

2 1
4 3

Explanation For Sample Input 1:

The output of the above test case is 2 1 for the first test case.
The output of the 2nd test case is 4 3.

Sample Input 2:

2
5 6
7 8

Sample Output 2:

6 5
8 7

Explanation For Sample Input 2:

The output of the above test case is  6 5 for the first test case.
The output of the 2nd test case is 8 7.