sub First {
 # do something....
 return $info_required_not_until_sub_seven;
}
sub Seventh {
 my $input_from_first = shift;
 my $input_from_fourth = shift;
 my $input_from_sixth = shift;
 #etc...
}


##</code><code>##

from sub FIRST get $input_required_not_until_seventh