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

Q: 9807 @ 9345 # 5133 # 8042 @ 1499 # 8153 # 638

A: -1315
****
Q: 4839 # 9558 @ 1236 # 8758 # 3209

A: -15450
****
Q: 5401 @ 4758 @ 7687 # 627 # 1616 @ 562 # 472

A:
15693
****