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: 452 # 5631 # 8307 # 1886 @ 4631 @ 1695 @ 4411 # 769

SOLUTION: -5404

PROBLEM: 9645 @ 911 @ 6748 # 3005 # 3625 # 87 @ 3003 # 5587 # 1382

SOLUTION: 6621

PROBLEM: 1588 # 8726 # 5876 # 4043 # 1126

SOLUTION:
-18183