Write the statements that will add the numbers $40,47,54,61$ all the way to $90$ and

display the result. You must not use numbers in your code. i$.$e$.$ you must use

variables. And you must use python f$-$strings in your print statement.

You MUST not use the builtin function sum$()$

Your final output must be like:

The sum of the integers from $40$ to $90$ in steps of $7s$ is $516$