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: 2932 # 4372 # 9818 # 101 # 5357 # 8354 @ 7479
Example Output: -17591

Example Input: 5507 @ 4243 @ 5897 @ 7115 # 6687 @ 3875 # 298 @ 1379 @ 1973
Example Output: 23004

Example Input: 4377 @ 5604 # 8336 # 2652
Example Output:
-1007