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: 8698 # 7378 # 9188 @ 5767 # 2935 # 2532 @ 7113
Example Output: -455

Example Input: 8816 # 8770 # 5004
Example Output: -4958

Example Input: 2578 # 2888 @ 7417 @ 3946
Example Output:
11053