Zenit - syr

program syr;
uses sysutils;
type desat=0..10000;
     percento=0..100;
var n:desat;
    k:percento;
    x:double;
begin
  readln(n,k);
  x:=(n*k)/(100-k);
  writeln(n+x:0:8);
  readln;
end.