A few questions about Python, can you help?

Question

Python

First, how can I make the formula solve without a trace? I want the answer from the first formula not to be displayed (in theory, in the example, the second formula depends on the first one), but from the second one right away?
Secondly: no matter how I run the *.py file, it constantly displays an error in Phyton, where did I go wrong in this simple code?

a = input("Введите число a: ")
b = input("Введите число b: ")
print(a, b)

Description of the error:

Many thanks in advance for your help!

Answer 1

In the screenshot, you are trying to run a py file from the python interpreter, and this must be done from CMD. I don't understand the question about formulas.

Answer 2

You are confusing the 2 modes. Interactive (running python without parameters) that prints the output of each formula and "batch" when we give the script.py to the interpreter ("c:\\python3\python.exe c:\\myscript.py").
In the second case, nothing is printed unless asked explicitly.