15dn 25dn2 35dn2w 45dn 55dn2
qwen2 rwen2w swen twen2 uwen2w
fnfn2w gnfn hnfn2 infn2w jnfn
4dgn 5dgn2 6dgn2w 7dgn 8dgn2
t4gn2 u4gn2w v4gn w4gn2 x4gn2w