Create a dictionary that contains another dictionary as a value. Access the nested dictionary value.

# Creating a dynamic nested dictionary with user input
student = {
    "name": input("Enter student's name: "),
    "details": {
        "age": int(input("Enter student's age: ")),
        "grade": input("Enter student's grade: "),
        "city": input("Enter student's city: ")
    }
}

# Display the entire dictionary
print("\nStudent Dictionary:", student)

# Accessing nested dictionary values
print("Student's name:", student["name"])
print("Student's age:", student["details"]["age"])
print("Student's grade:", student["details"]["grade"])
print("Student's city:", student["details"]["city"])