program skv;
uses crt;
var  a,b,c,d,x1,x2:real;
t:boolean;
begin
clrscr;
writeln('sisesta a,b,c');
readln(a,b,c);
   if a<>0 then
  begin
      d:=sqr(b)-4*a*c;
      t:=d>=0;
       if t then
        begin
            x1:=(-b+sqrt(d))/(2*a);
            x2:=(-b-sqrt(d))/(2*a);
            writeln('x1= ',x1:3:2,'    x2= ',x2:3:2);
         end
         else
            writeln('tulemusi ei ole!');
      end
        else
       writeln('/0 ei tohi!');

readln;
end.