P2c4 — @:¼ t ½<■ @ @ @ @@

P2c4 — @@:¼ t ½<■ @ @ @ @@

P2c4 — @@ ¼Dv M =s @RL  H n 2 L@T2l F Q* x&  d = X→ k

P2c4 — @:¼ X ½<■ @ @ @ @@ xr z&* @ Kqj=8)

P2c4 — @:¼ X ½Lv @ @ @ @@ xr z&* @ Kqj=8)

P2c4 — @@ X ½Lss R @ bs @ @@ xr z&* @ Kqj8  

P2c4 — @9■ X ½<7 @ 81 d C @ 