# `018` day of week

## 📝 Instructions:

1. Write a function `day_of_week()`. Given an integer `k` in the range 1 to 365, `day_of_week()` finds the number of day of week for *k-th* day of the year, provided that in this year January 1 was Thursday.

*The days of the week are numbered as:* 

```text
0 — Sunday
1 — Monday
2 — Tuesday, ...
6 — Saturday 
```

## 📎 Example input:

```py
day_of_week(1)
```

## 📎 Example output:

```py
4
```

## 💡 Hints:

+ If you don't know how to start solving this assignment, please review the theory for this lesson: https://snakify.org/lessons/integer_float_numbers/

+ You may also try step-by-step theory chunks: https://snakify.org/lessons/integer_float_numbers/steps/1/
