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

Example Input: 5640 @ 148 @ 7578 # 2373 # 3438 @ 4775 # 8187
Example Output: 4143

Example Input: 4238 # 9059 # 3579 @ 2750 # 6861 # 5756 @ 9729
Example Output: -8538

Example Input: 9871 @ 1885 @ 1367 # 8542
Example Output:
4581