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: 1767 @ 7166 @ 1543 @ 1185 @ 9966 # 6628

SOLUTION: 14999

PROBLEM: 7640 @ 3347 @ 904

SOLUTION: 11891

PROBLEM: 4274 # 4385 # 2316 # 7783

SOLUTION:
-10210