instruction:
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
question:
8643 @ 7199 @ 504 # 8068 # 8187 # 1584 @ 6422
answer:
4929


question:
634 # 6766 # 1458 # 4376 @ 9425
answer:
-2541


question:
6407 @ 9659 @ 2546 # 8458 @ 9807 @ 4700 # 3424 # 8423
answer:

12814