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  1. main_list = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h']
  2.  
  3. res = [(' (s) '.join(i) + ' (s)') for i in zip(*[iter(main_list)]*4)]
  4. print(res)
Success #stdin #stdout 0.01s 9992KB
stdin
Standard input is empty
stdout
['a (s) b (s) c (s) d (s)', 'e (s) f (s) g (s) h (s)']