Var a,b: real;
begin
readln(a, b);
if a=0 then if b = 0 then writeln ('x - любое значение')
else writeln ('x1 = 0');
if a>0 then if (b>=0) then writeln ('x1 = 0')
else writeln('x1=0 ', 'x2=',-sqrt(-b/a),' ', 'x3=',sqrt(-b/a));
if a<0 then if (b<=0) then writeln ('x1 = 0') <br>else writeln('x1=0 ', 'x2=',-sqrt(b/-a),' ', 'x3=',sqrt(b/-a))
end.