I can not understand this part( If you could explain it, I would be very grateful^_^↵
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**UPD: I got it now**↵
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![ ](/predownloaded/1b/37/1b379e07f4135934cec6692b598c0ea8c61b1e05.png)
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**UPD: I got it now**↵
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![ ](/predownloaded/1b/37/1b379e07f4135934cec6692b598c0ea8c61b1e05.png)