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

4189 # 3579 @ 7275 # 5186 @ 5825 # 3209
5315

353 # 799 @ 4824 # 3212 @ 1811 @ 752
3729

862 # 978 @ 7991 # 1457

6418