students = [
    {"name": "Alice", "grade": "90"},
    {"name": "Bob", "grade": "85"},
    {"name": "Charlie", "grade": "92"}
]

print(students)
print(type(students))

def grade_sort(d: dict[str,str]) -> int:
    return int(d["grade"])

# отсортировать студентов по убыванию рейтинга
sorted_students = sorted(students, grade_sort, True)
print(sorted_students)