What will be the output of the given code?lis_1= [1,2,3]lis_2= [4,5,6]lis_3=[7,8,9]lis_1.append(lis_3)lis_2.extend(lis_3)print(lis_1,lis_2)

The output of the given Python code will be:

[1, 2, 3, [7, 8, 9]] [4, 5, 6, 7, 8, 9]

Here's the step by step explanation:

1. Three lists are created: lis_1 with elements 1, 2, 3; lis_2 with elements 4, 5, 6; and lis_3 with elements 7, 8, 9.

2. The append() function is used to add lis_3 to the end of lis_1. This adds the entire list lis_3 as a single element to lis_1, resulting in lis_1 becoming [1, 2, 3, [7, 8, 9]].

3. The extend() function is used to add the elements of lis_3 to the end of lis_2. This adds each element of lis_3 individually to lis_2, resulting in lis_2 becoming [4, 5, 6, 7, 8, 9].

4. The print() function is used to print the contents of lis_1 and lis_2, resulting in the output: [1, 2, 3, [7, 8, 9]] [4, 5, 6, 7, 8, 9].