Unit 3 State Trace

Take one input from your Unit 3 program and trace it from the keyboard to the final output.

Use actual values from one run, for example:

"42" -> 42 -> 47 -> "Updated score: 47"

Annotate each arrow with the operation that caused the change. At least once, record the type of the value (str, int, float, or another type your program used).

Then answer one question:

Where would the program fail if the learner entered the wrong kind of text, and what evidence would Python give you?

Keep the answer tied to your trace rather than giving a generic definition of variables.