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: 2994 # 4380 @ 6720
Example Output: 5334

Example Input: 5265 @ 8995 # 365 # 6720 @ 438 # 9846 # 1190 @ 1943 # 9835
Example Output: -11315

Example Input: 8238 @ 2545 # 2670 # 9015 @ 8114 # 8918 # 3577
Example Output:
-5283