The task is to complete bubble function which is used to implement Bubble Sort !

**Input:**

First line of the input denotes the number of test cases 'T'. First line of the test case is the size of array and second line consists of array elements.

**Output:**

Sorted array in increasing order is displayed to the user.

**Constraints:**

1 <=T<= 100

1 <=N<= 1000

1 <=arr[i]<= 1000

**Example:**

**Input:**

2

5

4 1 3 9 7

10

10 9 8 7 6 5 4 3 2 1

**Output:**

1 3 4 7 9

1 2 3 4 5 6 7 8 9 10

Author: justCalvin

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