Hi,all

There is a problem confused me  for a long time .
It is:

cat  test.txt
------------------------
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
------------------------


Then I want to this result :
1 2     3  6   9
        4  7 10
        5  8  11

I don't know how to print the multiple lines with the Perl . 
Could anyone give me some suggestions?


Thanks in advance~










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