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: 1277 # 3822 @ 5064 @ 3615 # 7107 # 5691 @ 1554 # 6525 @ 714

SOLUTION: -10921

PROBLEM: 8780 # 5826 # 420 @ 8814 @ 5786 # 1725

SOLUTION: 15409

PROBLEM: 146 # 5209 @ 892

SOLUTION:
-4171