giro[6], giri[5], girr[5], dorr[5], urig[5], gurr[5],
goi[5], gor[5], ido[4], iod[4], rod[4], roi[4], duo[4], gur[4], dir[3], irr[3], dur[3],
go[4], do[3], od[3], du[2], ud[2], ui[2], ur[2],
