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#codeforces
Title
# codeforces
s

Sam

09/01/2019, 12:36 PM
Anyone have some suggestion for
D. Divide by three, multiply by two
?
b

bezrukov

09/01/2019, 3:28 PM
Hint: you need to imagine how each X' looks as a product of primes: X = 2^a * 3 ^b * otherprimes
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