ibisy[8], spidy[8], dipis[7], idisy[7],
bidy[8], dipy[7], bisy[7], ibis[6], spid[6], disy[6], idis[5],
dyb[7], bid[6], dip[5], bis[5], idy[5], psy[5], spy[5], syp[5], dis[4], psi[4],
by[5], bi[4], id[3], pi[3], ii[2], si[2],
