defhash problem => qw/name level difficulty statement owner author private generator runner judge testcnt timeout olimit/;
defhash contest => qw/start end name owner/;
defhash job => qw/date errors extension filesize private problem result result_text user/;
-defhash user => qw/name email lastjob town university level/;
+defhash user => qw/name email lastjob phone town university level/;
sub clean_job (_){
HDEL cp . "job.$_[0]", qw/result result_text results daemon/