Just thought I'd post this as I had problems finding it. To print a variable, set it. Under that, print an expression, but with no quotation marks surrounding the variable. Extremely basic I know, but for people starting out I wanted to post this.

here's the text:

password1 = 1234
msg (password1)

here's the text with a random number and message:

password1 = GetRandomInt(1000,9999)
msg ("Inside it says: " + password1)