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: 3979 @ 8270 # 8338 @ 8460 # 4746 @ 5598 @ 1343 @ 9371 # 637

SOLUTION: 23300

PROBLEM: 8441 @ 2924 # 9024 @ 6661 @ 7034 # 4821 # 4921

SOLUTION: 6294

PROBLEM: 4292 # 7663 @ 6931 @ 1332 @ 5698 @ 4887 # 9479 # 1571 # 6095

SOLUTION:
-1668