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: 6199 # 9863 # 8197 # 3975 @ 1000 @ 740 @ 3216 @ 2122 # 4226
Example Output: -12984

Example Input: 6942 @ 1857 @ 1508 @ 3059 # 6727
Example Output: 6639

Example Input: 7041 @ 9315 # 3359 @ 9773 # 3894 # 1187
Example Output:
17689