chyb[10], boby[9], coby[8], obcy[8], cygo[8], ochy[8],
bob[7], cyg[7], hyc[7], cob[6], hoc[6], och[6], boy[6], oby[6], hoy[6],
by[5], bo[4], go[4], ho[4], oh[4], co[3],
