Complete the Car class by creating an attribute purchase$\_$price $($type int$)$ and the method print$\_$info$()$ that outputs the car's information.

Ex: If the input is:

$2011$

$18000$

$2018$

where $2011$ is the car's model year, $18000$ is the purchase price, and $2018$ is the current year, then print$\_$info$()$ outputs:

Car's information:

Model year: $2011$

Purchase price: $18000$

Current value: $5770$