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: 1516 # 4681 # 225 # 3393 @ 1212 @ 367
Example Output: -5204

Example Input: 6514 # 8296 # 4939 # 5783 @ 1077 @ 3237 @ 5941 # 7665 # 2408
Example Output: -12322

Example Input: 7891 # 7168 # 782 # 9276 # 729 @ 4276 # 4768
Example Output:
-10556