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: 9629 @ 3687 @ 328

SOLUTION: 13644

PROBLEM: 2989 # 6833 # 4298 @ 8863 # 8408

SOLUTION: -7687

PROBLEM: 1999 # 5426 # 4765 @ 8381 # 5355 # 1081 @ 1200

SOLUTION:
-5047