GGGGGGGGGG
?GGGGGGGGG
?GGGGGGGGG
??GGGGGGGG
??GGGGGGGG
???GGGGGGG
???GGGGGGG
????GGGGGG
????GGGGGG
?????GGGGG
?????GGGGG
??????GGGG
??????GGGG
???????GGG
???????GGG
????????GG
????????GG
?????????G
?????????G
??????????
10 9 8 7 6 5 4 3 2 1