# Sum of two numbers

Write a function that receives two numbers and returns their sum. Example:

```
sum_of_two_numbers(2, 3) == 5
sum_of_two_numbers(7, 1) == 8
```

Write a function that receives two numbers and returns their sum. Example:

```
sum_of_two_numbers(2, 3) == 5
sum_of_two_numbers(7, 1) == 8
```