var
    a,b,c ,d,x1,x2, ans:real;

 begin
   read(a,b,c);
   d:=b*b-4*a*c ;


   if(d<0)
   then begin
      write('no');
   end else begin
     if(d=0)
     then begin
        x1:=-b/(2*a);
        writeln(x1:2:2);
        ans := a * x1 * x1 + b * x1 + c;
        writeln(ans:2:2);
     end else begin
        x1:=(-b+sqrt(d))/2*a;
        x2:=(-b-sqrt(d))/2*a;
        writeln(x1:2:2, ' ', x2:2:2);
        ans := a * x1 * x1 + b * x1 + c;
        writeln(ans:2:2);
     end;
   end;


  readln();
  readln();
end.