program ll;
var n,x:integer;
a,b,c,y:real;
Begin
writeln('vv x');
readln(x);
y:=0;
if x>3 then
begin
y:=sqr(x)+5;
writeln('y=',y:7:2);
end;
if x<=3 then
begin
y:=x-8;
writeln('y=',y:7:2);
end;
readln(y);
ENd.