var
a: array [1 .. 100] of integer;
i, max, n, k: integer;
b: array [1 .. 100] of integer;
begin
n := 7;
k := 1;
for i := 1 to n do
readln(a[i]);
for i := 1 to n do
if (a[i] mod 2) = 0 then
begin
b[i] := a[i];
k := k + 1;
end;
k := k + 1;
for i := 1 to n do
if (a[i] mod 2) <> 0 then
begin
b[i + k] := a[i];
end;
for i := 1 to 100 do
if b[i] <> 0 then
write(b[i]);
end.