F33132311331311331312323223313231133131323223313232333131323132322311   >>    F3313231133131133131232322331323113313132322331323233313132313232231   <<    F33132311331311331312323223313231133131323223313232333131323132322313   >>      F33132311331311331312323223313231133131323223313232333131323132322312   >>