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  1. l1=[[0,3,5],['cat','dog','chicken'], [15,14,11]]
  2. l2=[[1,2,4],['whale', 'rabbit', 'zebra'], [10,9,22]]
  3. l3=[[],[],[]]
  4. for i in range (3):
  5. for j in range(3):
  6. if(j==0):
  7. l3[i].append(l1[i][j])
  8. l3[i].append(l2[i][j])
  9. else:
  10. l3[i].append(l2[i][j])
  11. l3[i].append(l1[i][j])
  12. print(l3)
Success #stdin #stdout 0.02s 9936KB
stdin
Standard input is empty
stdout
[[0, 1, 2, 3, 4, 5], ['cat', 'whale', 'rabbit', 'dog', 'zebra', 'chicken'], [15, 10, 9, 14, 22, 11]]