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: 7376 @ 9212 @ 1713 # 9993

SOLUTION: 8308

PROBLEM: 722 # 9533 @ 3199 @ 4825 @ 817

SOLUTION: 30

PROBLEM: 3757 # 5238 # 9624 # 446 @ 6466 @ 3778 @ 1376

SOLUTION:
69