oau2xh pau2 qau2x rau2xh sau2
d1u2 e1u2x f1u2xh g1u2 h1u2x
2rv2x 3rv2xh 4rv2 5rv2x 6rv2xh
riw2xh siw2 tiw2x uiw2xh viw2
g9w2 h9w2x i9w2xh j9w2 k9w2x