F33132311331311331312323223313231232313232233131322331323133313231232333131   >>    F3313231133131133131232322331323123231323223313132233132313331323123233313   <<    F33132311331311331312323223313231232313232233131322331323133313231232333133   >>      F33132311331311331312323223313231232313232233131322331323133313231232333132   >>