Program n_1;
var n, m, i:integer;
begin
read (n, m);
for i:=n to m do if i mod 2 = 0 then write(i, ' ');
end.
Program n_1;
var n, m, i:integer;
begin
read (n, m);
for i:=n to m do if i mod 2 = 0 then write(i, ' ');
end.