Student Grades Sorter

You have a list of students, each represented by their name and grade in the format 'name grade'. Your task is to sort the students based on their grades in ascending order. If two students have the same grade, sort them alphabetically by name. Print the sorted student list in the original format, one per line. Example Input: Alice 85 Bob 75 Charlie 85 David 70 Example Output: David 70 Bob 75 Alice 85 Charlie 85