вычислите рациональным способом
(33-30)+(29-25)+(25-20)+(21-15)+(17-10)+(13-5)
(50-38)+(43-32)+(36-26)+(29-20)+(22-14)+(15-8)+(8-2)
(33-30)+(29-25)+(25-20)+(21-15)+(17-10)+(13-5)
(50-38)+(43-32)+(36-26)+(29-20)+(22-14)+(15-8)+(8-2)
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