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Lesson 1 1
Lesson 2 20
Lesson 3 39
Lesson 4 56
Lesson 5 75
Lesson 6 102
Lesson 7 126
Lesson 8 153
Lesson 9 180
Lesson 10 200
Lesson 11 224
Lesson 12 245
Lesson 13 266
Lesson 14 291
Lesson 15 311
Lesson 16 332
Lesson 17 365