TASK DEFINITION: In this task you will be given an arithmetic operation and you have to find its answer. The operators '+' and '-' have been replaced with new symbols. Specifically, '+' has been replaced with the symbol '@' and '-' with the symbol '#'. You need to perform the operations in the given equation return the answer
PROBLEM: 4688 # 4301 # 9301 # 7246 # 6377 @ 8027 @ 425 @ 3557

SOLUTION: -10528

PROBLEM: 4039 # 2314 # 8257 # 5828 @ 2387 @ 4250 @ 5479 # 991

SOLUTION: -1235

PROBLEM: 9311 # 2936 # 7593 # 8719 # 9876 @ 2595 # 3216 # 3694

SOLUTION:
-24128