10
10
S8/7S9S/2S
-WW+WSWWW*
S3-S=8+S-3
=WW=W=W*W=
S*2SSS*9W1
-WW1W2W=WS
2*S=6WWSWS
WWWSWS=SW/
WWW+W=W*W1
2S/2SS-3SS