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: 7127 # 5045 # 1920 # 8991 @ 8656 # 6430 @ 8803 # 7736 @ 887
Example Output: -4649

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

Example Input: 876 # 4644 @ 9506 # 2517 # 6587 @ 5243
Example Output:
1877