92h2ob a3h2 b3h2o c3h2ob d3h2
yti2 zti2o 0ti2ob 1ti2 2ti2o
nkj2o okj2ob pkj2 qkj2o rkj2ob
cbk2ob dbk2 ebk2o fbk2ob gbk2
11k2 21k2o 31k2ob 41k2 51k2o