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

7806 # 6020 # 4616 @ 3594 # 6312 # 5362 # 4403 @ 3666
-11647

463 @ 7844 # 9816
-1509

3637 @ 2651 @ 1307

7595