import strscans


func calc(x, y: int): (int, int) =
  let
    v1 = 100 * x / (x + y)
    v2 = 100 * y / (x + y)
  (v1.toInt, v2.toInt)


var
  (_, a, b) = stdin.readLine.scanTuple "$i $i"
  x = 1
  y = 0

if a < b: swap(a, b)

while true:
  let (c, d) = calc(x, y)
  if (c, d) == (a, b): break
  if c < a: inc x
  else: inc y

echo x + y