var
S: string;
W,V: WideString;
begin
S := 'OLOLO';
S := '' + Copy(S, 100500, 1);
WriteLn(S); //
W := 'LOOL';
V := '' + Copy(W, 100500, 1);
W := '' + Copy(W, 100500, 1);
WriteLn(V); //
WriteLn(W); //
W := 'LOOL';
W := Copy(W, 100500, 1);
WriteLn(W); //
WriteLn('that''s all');
end.