981ggs a91g b91gg c91ggs d91g
yz2g zz2gg 0z2ggs 1z2g 2z2gg
nq3gg oq3ggs pq3g qq3gg rq3ggs
ch4ggs dh4g eh4gg fh4ggs gh4g
174g 274gg 374ggs 474g 574gg