λFPAI
Practice/Bank Account Types

Bank Account Types

Easy

Problem Description

Extend the beginner BankAccount with subclasses SavingsAccount (adds interest) and CheckingAccount (allows overdraft).

Demonstrate polymorphic behavior when processing transactions.

OOP Focus: Inheritance plus overriding.

Note: This is statement-only in the current Practice version; stdout should be empty.

Input & Output Format

INPUT:
Two lines. First line: space-separated numbers for vector a.
Second line: space-separated numbers for vector b.
OUTPUT:
A single number (the dot product).

Example

Input:
1 2 3
4 5 6
Output:
32
Explanation: 1×4 + 2×5 + 3×6 = 4 + 10 + 18 = 32
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Output

Run or submit to see output.