It is simple:
Address = Address.concat(String.valueOf(i));
Address initailly had a whatever value: 184.108.40.206.
In your for loop you are appending the
i current value, but you don’t delete the previous value!
So it is going to
012345678910 than 012345678910 11 12 13 14 and so on.
I hope it is a good explanation for what is going there. Not sure what would you like to archive, but wan’t the question.