gcnh hcnh2 icnh2g jcnh kcnh2
52nh2 62nh2g 72nh 82nh2 92nh2g
utoh2g vtoh wtoh2 xtoh2g ytoh
jkph kkph2 lkph2g mkph nkph2
8aqh2 9aqh2g abqh bbqh2 cbqh2g