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28 = 248 C+ 82 D, (53(16) +3)/16 = (108(3) +54(6)+32) C + (108+54(2)+4) D
28 = 248 C+ 82 D, (53(16) +3)/16 = (108(3) +54(6)+32) C + (108+54(2)+4) D
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