Только начинаю в сфере питона.В чем тут ошибка?

with open("C:\Program Files (x86)\Atomic Heart","r") as f:
a=f.read()
print(a)
текст ошибки Traceback (most recent call last):
File "C:\Users\ALO228\PycharmProjects\pythonProject\main.py", line 1, in <module>
with open("C:\Program Files (x86)\Atomic Heart","r") as f:
PermissionError: [Errno 13] Permission denied: 'C:\\Program Files (x86)\\Atomic Heart'