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: 5245 # 2258 @ 1333 # 9626 @ 7040 @ 9804

SOLUTION: 11538

PROBLEM: 345 @ 1076 @ 7948 # 854

SOLUTION: 8515

PROBLEM: 1838 # 3941 # 3412

SOLUTION:
-5515