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: 2354 @ 5192 @ 5717 # 1833 @ 9672 # 3565

Answer: 17537


Question: 9986 @ 1010 @ 4921

Answer:
15917