7.3 Tuples
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1. What are tuples
   * Definition with example(0.25 - 1.42)
   * Differnce between tuples and lists(1.43 - 2.13)

#. Immutability of tuples
   * Exercise 1: Swap the values of a and b(2.29 - 4.18)

#. Tuple packing and unpacking
   * Tuple packing(4.19 - 5.01)
   * Tuple unpacking(5.02 - 5.26)

#. Summary(5.32 - 5.56)

#. Evaluation Questions(5.57 - 7.12)