sb1c tb1cr ub1cr2 vb1c wb1cr

h21cr i21cr2 j21c k21cr l21cr2

6s2cr2 7s2c 8s2cr 9s2cr2 at2c

vj3c wj3cr xj3cr2 yj3c zj3cr

ka4cr la4cr2 ma4c na4cr oa4cr2