n2yb1 o2yb18 p2yb q2yb1 r2yb18

ctzb18 dtzb etzb1 ftzb18 gtzb

1j0b 2j0b1 3j0b18 4j0b 5j0b1

qa1b1 ra1b18 sa1b ta1b1 ua1b18

f11b18 g11b h11b1 i11b18 j11b