Say I have a list of tuples like `[(1,2), (1,3), (1,4), (1,5), (1,6)]`. I'm trying to convert it to a simple list like `[1,2,1,3,1,4,1,5,1,6]`.

How do I do this without having to iterate through each element and add the items one by one to another list?

Are there any fast and efficient ways to do this without actually iterating through the original list of tuples? Perhaps a built-in function or method?