QBASIC

Due to boredom and loneliness, i have decided to play around with QBasic. Can someone tell a noob what hes doing wrong?

http://img31.imageshack.us/img31/3265/messinarounds.jpg

I HAVE defined "g" I declared it at the top where the users input = g

Maybe the goto lines are fucked i don't know. how do you check.

IF g > n THEN 350

No, QBASIC is right. The label on this line is undefined.

Hint: g is not a label. What is?

Now go read SICP.