For the record, you can change your title if you use the full editor. There should be a button for it when you edit your post. Try to stick to one topic.
On the subject of the matter, extra parameters are stored in a special notation, "…", which can then be converted to a table for use, by surrounding it in curly brackets, then giving it a variable for a home. Most people call this variable "args" or "tArgs".
local args = {...}
For example, typing "test foo bar baz" would run the program "test", storing foo, bar, and baz in the args table. We can print each of these arguments individually:
print(args[1]) --> foo
print(args[2]) --> bar
print(args[3]) --> baz
For your specific problem, "x" would be the first in the args table. In order to use it, however, we have to convert it to a number, since all arguments that come in are strings, which don't work well with math. After that, you simply use a for loop.
local args = {...}
local times = tonumber(args[1]) -- this is how many times we want to run the program
for i=1, times do
-- your code
end
The extra information isn't completely necessary, but should be helpful to know for the future.
