Task Scheduler

You are a project manager with a list of tasks to complete, each having a completion time. Your goal is to determine the minimum amount of time required to finish all tasks. Input consists of an integer n (the number of tasks) followed by n integers (the time each task takes). Output the total time when all tasks are completed in the order of the least time first. Example: Input: 4 5 3 2 8 Output: 18