y4k2 x4k2p1 w4k2p v4k2 u4k2p1
9dk2p1 8dk2p 7dk2 6dk2p1 5dk2p
knj2p jnj2 inj2p1 hnj2p gnj2
vwi2 uwi2p1 twi2p swi2 rwi2p1
65h2p1 55h2p 45h2 35h2p1 25h2p