Instructions: 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
Input: 687 # 5357 # 8688 @ 4351 # 4892 # 6040 # 2078 @ 4262
Output:
-17755