Why do the system still prompt for input?

Question

gets.to_i is part of comment.
Can't figure why do the system still prompt for input.

Code:
=begin
This
Spans
Multiple
Comment
gets.to_i
=end
print "hello world"

Answer 1

This is a good question: I already know why, but it is because SoloLearn's compilers are kept in a server, thus keeping low storage, if an input keyword was found (even if it is a comment) you will still have to input it and nothing will happen.