biga[8], giba[8], bacy[8], caby[8], cyga[8], cygi[8], baca[7], caba[7], gaci[7], gaya[7], agia[6],
big[7], gib[7], cyg[7], cab[6], aby[6], gay[6], aga[5], bai[5], agi[5], gai[5], cyi[5],
by[5], ba[4], ag[4], bi[4], ci[3], aa[2],