Just use an if...else. The ternary operator is not meant for full statements.

If I had to put them all on a single line, I'd use something like this, but you'll have to be careful of false values:

1 and print "hello1\n" and print "bye1\n" or print "hello2\n" and prin
+t "bye2\n"
[download]

...That's awful in terms of style, though. Just use an if statement.