Problem p02546 - Generation 2

Orig Description

Score : 100 points
Problem StatementIn the Kingdom of AtCoder, people use a language called Taknese, which uses lowercase English letters.
In Taknese, the plural form of a noun is spelled based on the following rules:
If a noun's singular form does not end with s, append s to the end of the singular form.
If a noun's singular form ends with s, append es to the end of the singular form.
You are given the singular form S of a Taknese noun. Output its plural form.
Constraints
S is a string of length 1 between 1000, inclusive.
S contains only lowercase English letters.
InputInput is given from Standard Input in the following format:
S
OutputPrint the plural form of the given Taknese word.
Sample Input 1apple
Sample Output 1apples
apple ends with e, so its plural form is apples.
Sample Input 2bus
Sample Output 2buses
bus ends with s, so its plural form is buses.
Sample Input 3box
Sample Output 3boxs

Extracted Specification

An input string \( S \) of length between 1 and 1000, inclusive, consisting of lowercase English letters.

### Example Input:

```
apple
```

### Function Signature:
Write a function f(S) that takes in the input.
```python
def f(S: str):
    '''
    S: a string
    '''
```

Test Case Generator

Sure! Here’s a test case generator for the given problem statement about pluralizing Taknese nouns:

```python
import random
import string

def generate_test_case():
    # Length of the string S
    length = random.randint(1, 1000)
    
    # Generate a random string of lowercase English letters
    S = ''.join(random.choices(string.ascii_lowercase, k=length))
    
    return S

# Generate and print a test case
if __name__ == "__main__":
    test_case = generate_test_case()
    print(test_case)
```

### Explanation:
1. **Length of the String \( S \)**:
   - The length of the string is randomly chosen between 1 and 1000 (inclusive).

2. **Generating the String \( S \)**:
   - The string \( S \) is generated using `random.choices` which randomly selects characters from `string.ascii_lowercase` (which contains all lowercase English letters) up to the specified length.

3. **Returning the Test Case**:
   - The function `generate_test_case` returns the randomly generated string which adheres to the constraints of the problem.

### Example Usage:
You can run the script to generate a random test case. The output will be a random string \( S \) which can be used as input to the problem.

```python
# Example output
# Possible generated string: "apple"
```

The generated string can then be used to test the implementation of the solution to the problem of pluralizing Taknese nouns.

Extract Arguments

def extract_arguments(fh):
    S = fh.readline().strip()
    return (S,)