Challenge 2: The int("3.14") Trap — Possible Solution
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raw = "3.99"
result = int(float(raw))
print(result)

Output:
3

WHY THIS WORKS AS AN ANSWER
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Calling int("3.99") directly would raise a ValueError, exactly this
chapter's warn-box explained — int() cannot parse a decimal point
from a string at all. float("3.99") is used FIRST, which correctly
parses the string into the float value 3.99, since float() has no
trouble with decimal points.

int(...) is then applied to that already-parsed float, which succeeds
because int() converting a FLOAT (not a string) simply truncates the
decimal portion — 3.99 becomes 3. This two-step float-then-int
conversion is exactly the workaround this chapter recommended, and it
correctly reproduces the same truncating (not rounding) behavior this
chapter's int(3.99) example demonstrated.