st: The last four digits

["jtuesta" <jtuesta@agrario.minag.gob.pe>]

Dear Statalisters,

I have a numerical variable in my data, its name is �nacimi�
I would like to separate the last four digits for to have two variables. For 
example:

I have 


   nacimi       
   01041974          
   01051973          
   07041975          
   08061972          

I�d like:

nacimi-1      nacimi-2
0104           1974
0105           1973
0704           1975
0806           1972


Thanks in advance!

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