muba@localhost ~ $ cat rosetta
sub chunky {
my ($n, @l) = @_;
my @f = ( ( (' ')x ($n-1)), "\n");
my $str = '';
$str .= shift(@l) . do {push(@f, shift @f); @l ? $f[-1] : ""} whil
+e @l;
return "$str\n";
}
print chunky 3, qw(a bb c d e f g h);
muba@localhost ~ $ perl rosetta
a bb c
d e f
g h
muba@localhost ~ $
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