Hi,

fruiture showed you a solution that works just fine on your posted data set. (++) But it seems worth pointing out that it wouldn't work if the records werent paired like that. For instance on

my @data = (         
   ["1040564312",    "IN",     258381720],
   ["1040564322",    "IN",     258385268],     
   ["1040564322",    "OUT",    4194081727],
   ["1040564312",    "OUT",    4194077715 ],
  
);
[download]

In the future can you please think of a better title name than "array". :-) And maybe try to descibe your problem a bit more?

--- demerphq
my friends call me, usually because I'm late....