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: 9487 # 9520 @ 4047

SOLUTION: 4014

PROBLEM: 7640 @ 3347 @ 904

SOLUTION: 11891

PROBLEM: 1615 # 7455 # 862 # 3742 # 2135 @ 6951 @ 3323 @ 4439 # 524

SOLUTION:
1610