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

720 # 1309 @ 989 @ 1211 # 5749 # 7 @ 3147 # 9792 # 1243
-12033

2370 # 437 # 89 # 6625 # 2724 @ 1767 # 2848 @ 3753
-4833

4502 @ 2460 @ 6488 # 1383 @ 9 # 3908 @ 8331 # 3571 # 9884

3044