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Module DEMO-33-73DEMO-OOP-33

Expense Average Parser

DEMO-OOP-33 • Object Oriented Programming

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Problem Statement

Parse three raw expense values and print their average. Handle invalid numeric input.

Input Format

Input is given as whitespace-separated raw tokens exactly in the order described by the problem statement.

Output Format

Print the exact success report or exact error message required by the problem.

Sample Testcases

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Sample #1
Public sample
Input
10.0
20.0
30.0
Output
Average: 20.00
Explanation
Input: first expense = "10.0", second expense = "20.0", third expense = "30.0".
Derivation: average = (10.00 + 20.00 + 30.00) / 3 = 20.00 | "Average: " + "20.00" = "Average: 20.00".
Output:
Average: 20.00
Sample #2
Public sample
Input
5
7.5
9.5
Output
Average: 7.33
Explanation
Input: first expense = "5", second expense = "7.5", third expense = "9.5".
Derivation: average = (5.00 + 7.50 + 9.50) / 3 = 7.33 | "Average: " + "7.33" = "Average: 7.33".
Output:
Average: 7.33

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