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If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?
If positive integers x and y are not both odd, which of the following must be even?