r_20002
x_20002
a_2000
b_2000
c_2000
d_2000
e_2000
f_2000
g_2000
h_2000
i_2000
j_2000
k_2000
l_2000
m_2000
n_2000
o_2000
p_2000
q_2000
r_2000
s_2000
t_2000
u_2000
v_2000
w_2000
x_2000
y_2000
z_2000