print with no return value (From WIKI)

"Mark Hahn" <[email protected]>
Newsgroups gmane.comp.lang.prothon.user
Message-ID <[email protected]> 
 I just removed the print return value from the latest release right when it
was going out, so I am avoiding the double print in this version of the
tutorial. We need to address this problem inthe final language freezing of
course. This not only solves the double print but also the print (1+2)*3
ambiguity.
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