student = {
    "name": "Sara",
    "age": 20,
    "score": 95
}
print(student)

{'name': 'Sara', 'age': 20, 'score': 95}

student["grade"] = "A"

for k, v in student.items():
    print(f"{k}: {v}")

name: Sara
age: 20
score: 95
grade: A