JuniorTheoryCommon

What happens when this program runs?

Python

age = 30
print("Age: " + age)

A TypeError is raised

Expecting Age: 30, as if Python turned 30 into text: + never turns a number into text, so a str plus an int raises TypeError; write str(age).
Expecting a ValueError: that one comes from a bad value such as int("2.5"), while mixing a str and an int in + is a wrong type.