10
10
S+3*S=1S-7
*W*WWWSWW+
4WS+5S8=4S
-WSWWW-WW+
S+63S9S-26
=WWSW*WWW=
4S0/7S=3+S
SWW8W=WWW0
/WWSWSWWWS
5S/S=5+S*2