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@arr = map {qr/\Q$_\E/} @arr;
my @keepers = do {
    local $" = '|';
    grep { m/@arr/ } <>;
};

my (%hsh, @keepers);
@hsh{@arr} = ();
while (<>) {
    push @keepers, $_ if grep {exists $hsh{$_}} split;
}