year = int(input("Enter the year: "))

if(year%4) == 0:
    if (year%100) == 0:
        if (year%400) == 0:
            print(f"{year} is a leap year")
        else:
            print(f"{year} is not a leap year")
    else:
        print(f"{year} is a leap year")
else:
    print(f"{year} is not a leap year")
