title: How can I perform concatenation on numbers in batch?
body: <p>For example, I have the numbers 5, 3, 8, 2, 7, 4 and 9 which I got from operations such as <code>2+2</code>, <code>7-2</code> and <code>3*3</code>, etc... They are all stored in variables. I want to know if there is a way I can dynamically perform concatenation in batch files to get a result such as the string "5382749". With up to 6 digits, I can do <code>%v1%%v2%%v3%</code>... but after that I get an "Invalid number. Numbers are limited to 32-bits of precision." error. What I am trying to do is echo a certain number of concatenated digits to the command line.
  Thanks in advance.</p>