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: 8842 @ 3530 @ 7537

SOLUTION: 19909

PROBLEM: 4809 # 9135 # 3011 # 4393 # 1039 # 3878 @ 1559 # 3798

SOLUTION: -18886

PROBLEM: 8459 # 6068 @ 161 @ 9763 # 5337 @ 8620 # 7914 @ 1740 # 9119

SOLUTION:
305