![Exercise 1.1B](https://blogs.uoregon.edu/222s16/files/2016/04/Sasha_Rubinshteyn_Exersize-1.1B-s2xvlz-470x140.jpg)
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![Exercise 1.1B](https://blogs.uoregon.edu/222s16/files/2016/04/Taekker_Carson_ARCH_222_16S-s5golm-470x140.jpg)
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