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in reply to Perl Context - concatenation operator

Consequently the following code output is the same:
print 84.69.83.84.10.13; # Same as print map chr($_), (84, 69, 83, 84, 10, 13);
s;;5776?12321=10609$d=9409:12100$xx;;s;(\d*);push @_,$1;eg;map{print chr(sqrt($_))."\n"} @_;