# Challenge 4: Implement a Print Method

In this exercise, you will modify the rectangle class such that the print method actually prints values instead of addresses.

We'll cover the following

## Problem Statement

Implement a function in the Rectangle class __str__ method, such that when you print one of the objects using the print() command, it prints the coordinates as x1, y1, x2, y2.

For instance, the code

rectangle = Rectangle(2, 3, 5, 7)
print(rectangle)


should print

2, 3, 5, 7


### Input

A class Rectangle with constructor having the rectangle coordinates x1, y1, x2, and y2 respectively

### Output

Print the coordinates of the rectangle

### Sample Input

x1 = 2, y1 = 3, x2 = 5, y2 = 7

2, 3, 5, 7

## Coding Exercise

Write your code below. It is recommended​ that you try solving the exercise yourself before viewing the solution.

Use the Python documentation on classes to solve the following exercise.

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