G'day leoberbert,

" I need a help ..."

It would appear you actually need lots of help, not a help. Here's lots of help:

• "How do I post a question effectively?" (surprisingly, as you joined almost four years ago and have made several posts in that period).
• "How (Not) To Ask A Question" (paying particular attention to the "Do Your Own Work" section).
• "perlintro — Perl introduction for beginners" (this is peppered with links to more detailed and advanced information: follow as needed).
• Text::CSV with "sep_char => '|'", if your data is in a pipe-separated format; split with "/[|]{3}/", if "|||" is just a constant literal used as a delimiter.
• You should probably consider capturing all your input in a hash; leaving collation and output to a subsequent stage. The key would appear to be that initial, numeric field.
• You may also want join and sort in various places.

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