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: 8196 @ 7820 # 8484 # 7462 @ 8007 # 414

SOLUTION: 7663

PROBLEM: 6915 @ 3564 # 9197 # 9440 # 1112 @ 382 @ 9681 # 6512 # 9658

SOLUTION: -15377

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

SOLUTION:
-12403