Spss loop and testing for normal distribution

I am currently working in SPSS. I want to creat 50 groups and for each group i generate 100 random numbers. After this i want to test each group for normal distribution. Unfortunately, this doesnt work.

Thats my code:

input program.
   loop l=1 to 50 by 1.
     loop index_2=1 to 100 by 1.
     COMPUTE index_1 =l. 
     end case.
   end loop.
end loop.
end file.
end input program.
exe.

and i know how to test for normal distribution, but i dont know how to select a group.

  EXAMINE VARIABLES=Zufall_1 
  /PLOT BOXPLOT STEMLEAF NPPLOT 
  /COMPARE GROUPS 
  /STATISTICS DESCRIPTIVES 
  /CINTERVAL 95 
  /MISSING LISTWISE 
  /NOTOTAL.

Can someone help me pls :)