In this lesson, we will continue to develop our smart contract which stores favorite numbers. Let's take a look at what we have done so far. We have created a new type called a **struct**, called **Person**, which has two variables: - **favorite_number**: A public variable to store our favorite number - **name**: A public string variable to store a name We have defined several state variables: - **my_name**: A string which stores our name. - **my_favorite_number**: A public variable to store our favorite number. - **list_of_numbers**: A public list that will store a list of favorite numbers. - **list_of_people**: A public list that will store a list of people. - **index**: A public integer that will track the size of our lists. - **name_to_favorite_number**: A public hashmap that will store a name and a favorite number as a key value pair. The **constructor** function is used to initialize the state variables. In our example, we will set the **my_favorite_number** to 7 and the **index** to 0. We will also set **my_name** to "Patrick". We also have two functions, a **store** function to set our favorite number and a **retrieve** function to retrieve our favorite number. Here is the code we have written so far: ```python # pragma version ^0.4.0 # @license MIT struct Person: favorite_number: uint256 name: String[100] my_name: public(String[100]) my_favorite_number: public(uint256) = 7 list_of_numbers: public(uint256[5]) = [0, 0, 0, 0, 0] list_of_people: public(Person[5]) index: public(uint256) name_to_favorite_number: public(HashMap[String[100], uint256]) @deploy def __init__(): self.my_favorite_number = 7 self.index = 0 self.my_name = "Patrick!" @external def store(new_number: uint256): self.my_favorite_number = new_number @external @view def retrieve() -> uint256: return self.my_favorite_number ``` In the next lesson, we will deploy our smart contract and test it.