a, b = gets.split.map &:to_i
hash = Hash.new { |hash, key|
  n, m = key
  if n < 0 || m < 0
    hash[key] = false
  elsif n == 0 && m == 0
    hash[key] = true
  elsif n % 2 == 1 && m % 2 == 1
    hash[key] = false
  elsif n % 2 == 0 && m % 2 == 1
    hash[key] = hash[[n / 2, m - 1]]
  elsif n % 2 == 1 && m % 2 == 0
    hash[key] = hash[[n - 1, m / 2]]
  else
    hash[key] = hash[[n - 1, m / 2]] || hash[[n / 2, m - 1]]
  end
}
puts hash[[a, b]] ? "Yes" : "No"