cek[5], kek[5], ket[5], tek[5], cer[4], ker[4], rek[4], ret[4], ter[4], cew[4], wek[4], twe[4], wet[4], wte[4], rew[3], wre[3], wrr[3],
ce[3], et[3], te[3], er[2], re[2], ew[2], we[2],
