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  1. arr_1 = [1, 2, 3, 4]
  2. arr_2 = [5, 6, 7]
  3. print(arr_1 + arr_2)
  4.  
  5.  
Success #stdin #stdout 0.03s 9576KB
stdin
8
stdout
[1, 2, 3, 4, 5, 6, 7]