t'--
-te 2
2r-r3 0 2l-te 2t- s 2 2t-t0 4rE te HA H*Il
2 2t- s 2t- i O zt-tr 2l-t8
21-10 0 21-ll
2t-l3 2 4r tt 4'Jil
,r-r, s fi t
(!t ri )r33 (^t)r12