10
(7  -20 +10*  ( 7  +  ( 20 *  4  - (11 -2)(  -  )6  )+  6/  (  18-19  -(  (20))))
4- 7  /) 12 *( )3 -  8 -9
(18)  -(  15 * ( 4(-)0  )) )*  20)
16 + 12 - 1/  18- 20 -12  +9
(14  * 4  +  (10 /  18 )  - (15 +14+  2)))
8 -  19  *  12 *  (  2  - 4  *(  ( 14  +  (  9))()
18  - 11/ 0 +18  / (  2  - 4 + (  8  + 7- 19 / 0))
15)+)1 *  19  +20 /  ( 8 + 7 - 14-  8-  1 - 13 +  20)
(6  (+((11  /14-  9  / 9())
(3  / 2  + 15 / 17-12  + 8 )+  2/20  -12  *  (0 +  20/ 12)