Sort Car Models by Year

You are given a list of car models along with their release years. Each model is represented as a string 'Model Year'. Your task is to sort these models by their release year, and by model name alphabetically for those released in the same year. Input: - The first line contains an integer N (1 ≤ N ≤ 100) indicating the number of car models. - The next N lines each contain one car model in the format 'Model Year'. Output: - A single line with the sorted car models, separated by commas. Example: Input: 3 Civic 2020 Accord 2018 Model S 2019 Output: Accord 2018, Model S 2019, Civic 2020