Leap Year Checker

📝 Description

Determine if a given year is a leap year.

Input Format

A single integer year (1 ≤ year ≤ 9999)

Output Format

Print "true" if leap year, "false" otherwise

Constraints

1 ≤ year ≤ 9999

🔍 Sample Input

2020
            

✅ Sample Output

true