Internal Helper Methods

Easy Method Types & Behaviors

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Problem Statement

Create a `Calculator` class. Define an internal helper method `_add(self, a, b)` that returns the sum. Define a public method `calculate_sum(self, a, b)` that calls `_add` and prints ‘Result: [sum]’.

Input Format

Two space-separated integers.

Output Format

Print the result string.

Constraints

-1000 <= a, b <= 1000

Sample Input

5 10

Sample Output

Result: 15

Explanation

Methods starting with an underscore are treated as internal helpers and should not be called directly from outside the class.

Starter Code

class Calculator:
    # Define _add and calculate_sum
    pass

if __name__ == '__main__':
    a, b = map(int, input().split())
    # Instantiate Calculator and call calculate_sum
    pass

Limits

Time Limit: 1s
Memory Limit: 256MB

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