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

Ex Input:
5571 @ 5729 # 6405 # 526 # 1330

Ex Output:
3039

Ex Input:
9781 # 2797 # 2134

Ex Output:
4850

Ex Input:
4331 # 362 # 8646 # 8722 @ 6424 @ 4083 # 579 @ 4561

Ex Output:
1090