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: 6203 # 8978 # 1139 @ 240 # 4716
Example Output: -8390

Example Input: 1767 @ 7166 @ 1543 @ 1185 @ 9966 # 6628
Example Output: 14999

Example Input: 1573 @ 2934 @ 9701
Example Output:
14208