input: def print_grade_table(students):
      """Prints a formatted table of grades for a given set of students.
      >>> print_grade_table([{'name': "John", 'grade': 92}, {'name': "Alice", 'grade': 95}, {'name': "Bob", 'grade': 87}])
      Name     Grade
      --------  ----
      John      92
      Alice     95
      Bob       87
      """
output:     print("Name     Grade")
      print("--------  ----")
      for student in students:
          print(f"{student['name']:<8}  {student['grade']}")