dryf[10], refy[9], hydr[8], hery[7], dedr[6], dred[6], dery[6], redy[6],
efy[8], ref[7], hyr[6], her[5], der[4], red[4], ery[4],
ef[6], fe[6], eh[4], he[4], de[3], er[2], re[2],
