F3313231133131133131232322331323113313132322331323233313132322131   >>    F331323113313113313123232233132311331313232233132323331313232213   <<    F3313231133131133131232322331323113313132322331323233313132322133   >>      F3313231133131133131232322331323113313132322331323233313132322132   >>