I have an observation and I need to make a column from it. SAS : I have an observation and I need to make a column from it.
I tried split, I tried transpose, but nothing...

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    I have:


       num first second third
        1     13     17     16
        2     23     11     64

    I need:


     num  var_n
       1  13
          17
          16
       2  23
          11
          64


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Can you give me some advice, please