blef[11], efeb[10], bele[7], lesb[7], elew[5], lewe[5], selw[5],
elf[8], fee[7], fes[7], bel[6], ble[6], bee[5], web[5], lee[4], lew[4], ewe[3], swe[3],
ef[6], fe[6], be[4], el[3], ee[2], es[2], se[2], ew[2], we[2],
