hecna[8],
gach[9], hang[8], echa[7], heca[7], ganc[7], anch[7], chan[7], chna[7], chen[7], cena[5],
ach[6], cha[6], che[6], ech[6], hec[6], gan[5], gna[5], gen[5], han[5], hen[5], cna[4], cen[4], cne[4],
ag[4], ha[4], eh[4], he[4], ce[3], na[2], en[2],
