bitw[7], birr[6], brwi[6], wint[5], iwin[4], wini[4],
bit[6], bin[5], ibn[5], brr[5], nit[4], itr[4], tir[4], tri[4], inr[3], wii[3], niw[3], win[3], wir[3], wrr[3],
bi[4], ii[2], in[2], ni[2], iw[2],
