var
s, a: string;
i: integer;
begin
a := '**';
readln(s);
for i := length(s) downto 1 do
if s[i] = ' ' then
begin
insert(a, s, i);
delete(s, i + 2, 1);
end;
writeln(s);
end.
var
s, a: string;
i: integer;
begin
a := '**';
readln(s);
for i := length(s) downto 1 do
if s[i] = ' ' then
begin
insert(a, s, i);
delete(s, i + 2, 1);
end;
writeln(s);
end.