a b
a b 1
b r 1
t a 1
w k 1
c j 1
r j 1
b q 1
b m 1
p g 1
e j 1
d i 1
w l 1
t w 1
r w 1
o g 1
g u 1
h x 1
q h 1
v a 1
l e 1
u i 1