I will upvote if it is a detailed flowchart, so please make a flowchart for this situation.

Geraldines Landscaping Service and Gerards Lawn Maintenance are merging their businesses and want to merge their customer files. Each file contains a customer number, last name, address, and property area in square feet, and each file is in customer number order. Design the logic for a program that merges the two files into one file containing all customers. Assume there are no identical customer numbers.

This is all the information the activity provided.