var
a,n:integer;
begin
read(a);write(a,'=');n:=2;
repeat
if a mod n=1
then begin
if
a div n=1
then begin write(n);a:=1;end
else begin
write(n,'*');
a:=a div n;end end
else n:=n+1;
until a=1;
end.

要加分呦......