If you're seeing this message, it means we're having trouble loading external resources on our website.
If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
To log in and use all the features of 好色先生TV, please enable JavaScript in your browser.
num1 = 5 num2 = num1 num1 = num1 + 2
num1
num2