What will be the output of the following Python code snippet?print([[i+j for i in "abc"] for j in "def"])

The output of the given Python code snippet will be a list of lists. Here's how it works:

1. The outer list comprehension for j in "def" iterates over each character in the string "def". For each character j, it creates a new list.

2. The inner list comprehension for i in "abc" iterates over each character in the string "abc". For each character i, it adds i to j and this new string is an element in the new list.

3. The result is a list of these new lists.

So, the output will be:

[['ad', 'bd', 'cd'], ['ae', 'be', 'ce'], ['af', 'bf', 'cf']]

Each inner list corresponds to a character in "def", and the strings in the inner lists are the characters in "abc" concatenated with that character.