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You are solving a spreadsheet benchmark task in a real workbook. Objective: Produce the correct final workbook state for the expected answer region. What matters: - Only the values in the expected answer region will be graded. - The workbook is the answer. Instructions: 1. Read the workbook and inspect the relevant data region first. 2. Infer the required result for the provided workbook instance. 3. Write the final value(s) directly into the expected answer region. 4. Do not rely on prose, formulas in your chat response, pseudocode, or VBA as the answer unless the benchmark explicitly requires those to be written into cells. 5. If the natural-language task asks for a general method, formula, or macro, convert that into the concrete result needed for this workbook instance. 6. Keep your final text response short and only summarize the workbook cells you changed. Relevant data region(s): Expected answer region(s): A13:A14 Expected answer sheet(s): Task: I am working on a model in Excel and need to find a formula that allows me to obtain a list of customer names that I have migrated based on a specific input. In my uploaded Excel file, I want to be able to input '0' in cells B1:F1 and have Excel display the corresponding list of customers I have migrated in cells A13 and A14. Choose and implement a formula to accomplish this.