10
10
S3/S=S*2-S
2WW+WWW+WW
*WWSW2WSW8
S*7=1SW6WS
=WW1W/W/W/
SW1S/S=SW4
*W*WW=W=W=
8WSW1S/6=S
WW=WWWWWW*
S+7=S5-S*S