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