let rec hasamiuchi k1 k2 a =
  let left, right = k1 *. a, k2 *. a in
  let cleft = ceil left in
  if cleft <= right then int_of_float (a +. cleft)
  else hasamiuchi k1 k2 (a+.1.)

let k1_k2 la lb =
  let la, lb = float_of_int la, float_of_int lb in
  let lamin, lamax = la -. 0.5, la +. 0.5 in
  let lbmin, lbmax = lb -. 0.5, lb +. 0.5 in
  let k1_la = (100. -. lamax) /. lamax +. 0.0000000001 in
  let k1_lb = lbmin /. (100. -. lbmin) in
  let k2_la = (100. -. lamin) /. lamin in
  let k2_lb = lbmax /. (100. -. lbmax) in
  let k1 = max k1_la k1_lb in
  let k2 = min k2_la k2_lb in
  k1, k2

let () =
  let k1, k2 = Scanf.sscanf (read_line()) ("%i %i") k1_k2 in
  let ans = hasamiuchi k1 k2 1. in
  print_int ans;
  print_endline ""