program ciur;
var f,g:text;
    i,j,n:longint;
    a:array[1..63000]of byte;
begin
assign(f,'ciur.in');reset(f);
assign(g,'ciur.out');rewrite(g);
readln(f,n);
for i:=2 to n do
    if a[i]=0 then begin
                   for j:=a[i]+1 to n do
                       if j mod 2=0 then a[j]:=1;
for i:=2 to n do
    if a[i]=0 then write(g,a[i],' ');
close(f);
close(g);
end.