Count of a list

The count of a list $t$ is the number of non-list elements that it contains. For example, the count of $['a', 'b', 'c']$ is 3, the count of $['a', ['a', 'a'], 'a']$ is 4, the count of $[[['a']]]$ is 1, and the count of $[]$ is 0.

Write a program that prints the count of every given list.

Define and use a recursive function

count(t)

that returns the count of a list $t$ .

Hint

Using the @ast@ package, you can extract the list $t$ encoded in a string $s$ with @t = ast.literal_eval(s)@.

Input

The input consists of several lists.

Output

Print the count of every given list.

Observation

You only need to submit the required procedure; your main program will be ignored.

Problem information

Author: Gabriel Valiente

Generation: 2026-01-25T19:34:27.777Z