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: 6607 @ 8561 @ 5571 # 6468 @ 8173 # 7134 @ 2102 # 7688

SOLUTION: 9724

PROBLEM: 5177 @ 9496 # 845 @ 5246 @ 9906 @ 5654 @ 1721 @ 5303

SOLUTION: 41658

PROBLEM: 3699 # 2129 @ 4147 # 8329 @ 2591 # 3765 @ 7820 # 3134

SOLUTION:
900