aup2 bup2r cup2rb dup2 eup2r

zkq2r 0kq2rb 1kq2 2kq2r 3kq2rb

obr2rb pbr2 qbr2r rbr2rb sbr2

d2r2 e2r2r f2r2rb g2r2 h2r2r

2ss2r 3ss2rb 4ss2 5ss2r 6ss2rb