Write a program to read a integer $n$ from the user, and check whether the

year is a leap year or not.

Checking whether a year is leap year or not. Please input a year: $1900$

$1900$ is not a leap year.

$...$

Checking whether a year is leap year or not. Please input a year: $1996$

$1996$ is a leap year.

$...$

Checking whether a year is leap year or not. Please input a year: $1998$

$1998$ is not a leap year.

$...$

Checking whether a year is leap year or not. Please input a year: $2000$

$2000$ is a leap year.