5
(16  +20-19-  10  )+ (14))
()9 +  15 )+(3  + 1 - (  15 * 8-  6))
12)- 14  -  3
0  /)  15  +( 0)/20-  ( 15 *  15 +(12))
(13 -  0( -12  + 2  ) + 19