program prim;
var i,j,p,n:integer;
begin
   writeln('Meddig irassuk ki a primeket?');
   readln(n);
   for i:=2 to n do
   begin
    p:=0;
    for j:=2 to round(sqrt(i)) do
     if i mod j=0 then p:=1;
    if p=0 then write(i:8);
   end;
   readln
end.