a = gets.to_i
b = gets.to_i
c = gets.to_i
num = 0
for i in 1..(b + c - a - 1)
  for j in 1..(b + c - a - i - 1)
    if i * (a + i) * c**2 == b**2 * j * (a + j) && (b - c).abs < (i + j + a)
      puts "Yes"
      exit
    end
  end
end
puts "No"