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my @list = 1..8;
my @ref_list;
...
while ( $code_ref = pop @ref_list ) {
    &$code_ref;
}

for (my $i = 1; $i <= 8; ++$i) {
    my $really_private = $i;
...
}

$_->() foreach @ref_list;

sub ret_simple_formatter {
    my $fmt = shift;
    return sub {sprintf($fmt, shift);};
}