$x={\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}(input())$

while $x0$ :

# Do something

$x={\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}(input())$

print$(\text{'}$Goodbye$\text{'})$

Which input value causes "Goodbye" to be output next?

$-1$

$0$

$1$

No such value

Python