ob4irr nb4ir mb4i lb4irr kb4ir

zk3ir yk3i xk3irr wk3ir vk3i

au2i 9t2irr 8t2ir 7t2i 6t2irr

l31irr k31ir j31i i31irr h31ir

wc1ir vc1i uc1irr tc1ir sc1i