bid[6], cob[6], bod[6], cod[5], doc[5], boi[5], obi[5], doi[4], ido[4], wic[4], diw[4], wid[4], iwo[3], owi[3], wio[3],
bi[4], bo[4], ci[3], id[3], co[3], do[3], od[3], iw[2],
