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

6884 @ 145 # 2208 # 5356 # 3578 @ 606
-3507

3923 # 9826 # 9066 # 9343 # 4675 @ 4896 # 8019 @ 4615 # 3491
-30986

7435 # 7943 @ 4276 # 1005

2763