input: def print_grade_table(students):
      """
      Print 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']:<10}{student['grade']}")