Sort Project Tasks

You are managing a project with various tasks, each with a name and its estimated duration in hours. Write a program to sort these tasks first by duration in ascending order, and for tasks with equal duration, alphabetically by task name. The task list is provided line by line via standard input. Output the sorted task names one per line. Example input: "Task A 5\nTask C 3\nTask B 5" would result in: "Task C\nTask A\nTask B".