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: 4238 # 9059 # 3579 @ 2750 # 6861 # 5756 @ 9729

SOLUTION: -8538

PROBLEM: 4681 # 7765 @ 9516 @ 4570 @ 2862

SOLUTION: 13864

PROBLEM: 418 # 4425 @ 5044 # 8213 @ 4184 @ 7013

SOLUTION:
4021