41gg 31ggbr 21ggb 11gg 01ggbr
fbggbr ebggb dbgg cbggbr bbggb
qkfgb pkfg okfgbr nkfgb mkfg
1teg 0tegbr ztegb yteg xtegbr
c3dgbr b3dgb a3dg 92dgbr 82dgb