F3313231133131133131232322331323113313132322331323233313132313232321   >>    F331323113313113313123232233132311331313232233132323331313231323232   <<    F3313231133131133131232322331323113313132322331323233313132313232323   >>      F3313231133131133131232322331323113313132322331323233313132313232322   >>