disy[6], diwy[6], widy[6], idis[5], siwy[5], wisy[5], siwi[4], wisi[4],
idy[5], dis[4], diw[4], wid[4], iwy[4], iii[3], wii[3], siw[3], wis[3], wsi[3],
id[3], wy[3], ii[2], si[2], iw[2],
