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: 549 @ 2405 # 8368 @ 806 @ 5639

SOLUTION: 1031

PROBLEM: 9930 # 7864 @ 6797 # 6092 @ 1146 @ 1388 # 8545 # 9163

SOLUTION: -12403

PROBLEM: 9191 # 6484 # 7254 @ 4058 # 1092 # 1704

SOLUTION:
-3285