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:
5513 @ 1221 @ 8910 @ 8422
answer:
24066


question:
4839 # 9558 @ 1236 # 8758 # 3209
answer:
-15450


question:
8218 @ 5194 @ 1365
answer:

14777