var a,b,c,d:real; begin readln(a,b,c); d:=sqr(b)-4*a*c; if d<0 then writeln('Net kornei'); if d=0 then writeln('x=',-b/(2*a)); if d>0 then writeln('x1=', (-b-sqrt(d))/(2*a),' x2=',(-b+sqrt(d))/(2*a)); end.