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: 4460 @ 9143 # 6720 # 8379 @ 1636 # 6526

SOLUTION: -6386

PROBLEM: 2243 # 9188 # 3609 # 6813 @ 6109 @ 6045

SOLUTION: -5213

PROBLEM: 7621 # 6427 @ 6713

SOLUTION:
7907