The string concatination operator . has forced the array into scalar context, and so the list returns it's length not its content.

Try runing this to see some different ways of doing it

my @tmp = (1,2,3);

print @tmp;
print "\n";
print @tmp , "\n";
print @tmp . "\n";
print "@tmp" , "\n";
print join("\n" , @tmp);
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