Properties

Lab Python Advanced 30 points

Create Temperature storing Celsius in _celsius, with a celsius property whose setter raises ValueError("below absolute zero") under -273.15, and a read-only fahrenheit property. Read values; for each set the temperature and print Fahrenheit (1 decimal) or the error.

Input

Line 1: n. Then n numbers.

Output

n lines.

Example

Input

Output

212.0
below absolute zero
32.0

Sample input available Sample output available

Editor

Python

Hints

@property turns a method into an attribute you read without ().

@name.setter runs when you assign to it.

Solution explanation

Properties let you add validation without changing how callers use the attribute.

Show solution

class Temperature:
    def __init__(self):
        self._celsius = 0.0

    @property
    def celsius(self):
        return self._celsius

    @celsius.setter
    def celsius(self, value):
        if value < -273.15:
            raise ValueError("below absolute zero")
        self._celsius = value

    @property
    def fahrenheit(self):
        return self._celsius * 9 / 5 + 32


t = Temperature()
for _ in range(int(input())):
    try:
        t.celsius = float(input())
        print(f"{t.fahrenheit:.1f}")
    except ValueError as err:
        print(err)

Output

Answer