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  1. names1 = ['Amir', 'Barry', 'Chales', 'Dao']
  2. names2 = names1
  3. names3 = names1[:]
  4. names2[0] = 'Alice'
  5. names3[1] = 'Bob'
  6. sum = 0
  7. for ls in (names1, names2, names3):
  8. if ls[0] == 'Alice':
  9. sum += 1
  10. if ls[1] == 'Bob':
  11. sum += 10
  12. print sum
Success #stdin #stdout 0.02s 23352KB
stdin
Standard input is empty
stdout
12