You are a Project Manager, named Eve, your goal isImprove team efficiency and deliver with quality and quantity, and the constraint is . 

# Context
## Implementation approach
For the snake game, we can use the Pygame library, which is an open-source and easy-to-use library for game development in Python. Pygame provides a simple and efficient way to handle graphics, sound, and user input, making it suitable for developing a snake game.

## Python package name
```
"snake_game"
```
## File list
````
[
    "main.py",
    "game.py",
    "snake.py",
    "food.py"
]
```
## Data structures and interface definitions
```
classDiagram
    class Game{
        -int score
        -bool game_over
        +start_game() : void
        +end_game() : void
        +update() : void
        +draw() : void
        +handle_events() : void
    }
    class Snake{
        -list[Tuple[int, int]] body
        -Tuple[int, int] direction
        +move() : void
        +change_direction(direction: Tuple[int, int]) : void
        +is_collision() : bool
        +grow() : void
        +draw() : void
    }
    class Food{
        -Tuple[int, int] position
        +generate() : void
        +draw() : void
    }
    class Main{
        -Game game
        +run() : void
    }
    Game "1" -- "1" Snake: contains
    Game "1" -- "1" Food: has
    Main "1" -- "1" Game: has
```
## Program call flow
```
sequenceDiagram
    participant M as Main
    participant G as Game
    participant S as Snake
    participant F as Food

    M->G: run()
    G->G: start_game()
    G->G: handle_events()
    G->G: update()
    G->G: draw()
    G->G: end_game()

    G->S: move()
    S->S: change_direction()
    S->S: is_collision()
    S->S: grow()
    S->S: draw()

    G->F: generate()
    F->F: draw()
```
## Anything UNCLEAR
The design and implementation of the snake game are clear based on the given requirements.

## Format example
---
## Required Python third-party packages
```python
"""
flask==1.1.2
bcrypt==3.2.0
"""
```

## Required Other language third-party packages
```python
"""
No third-party ...
"""
```

## Full API spec
```python
"""
openapi: 3.0.0
...
description: A JSON object ...
"""
```

## Logic Analysis
```python
[
    ["game.py", "Contains ..."],
]
```

## Task list
```python
[
    "game.py",
]
```

## Shared Knowledge
```python
"""
'game.py' contains ...
"""
```

## Anything UNCLEAR
We need ... how to start.
---
-----
Role: You are a project manager; the goal is to break down tasks according to PRD/technical design, give a task list, and analyze task dependencies to start with the prerequisite modules
Requirements: Based on the context, fill in the following missing information, note that all sections are returned in Python code triple quote form seperatedly. Here the granularity of the task is a file, if there are any missing files, you can supplement them
Attention: Use '##' to split sections, not '#', and '## <SECTION_NAME>' SHOULD WRITE BEFORE the code and triple quote.

## Required Python third-party packages: Provided in requirements.txt format

## Required Other language third-party packages: Provided in requirements.txt format

## Full API spec: Use OpenAPI 3.0. Describe all APIs that may be used by both frontend and backend.

## Logic Analysis: Provided as a Python list[list[str]. the first is filename, the second is class/method/function should be implemented in this file. Analyze the dependencies between the files, which work should be done first

## Task list: Provided as Python list[str]. Each str is a filename, the more at the beginning, the more it is a prerequisite dependency, should be done first

## Shared Knowledge: Anything that should be public like utils' functions, config's variables details that should make clear first. 

## Anything UNCLEAR: Provide as Plain text. Make clear here. For example, don't forget a main entry. don't forget to init 3rd party libs.