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: 6484 # 6042 @ 239 # 5161 # 7940 @ 2882 @ 8393 # 311 @ 6933
Example Output: 5477

Example Input: 6729 # 6577 # 4789 # 6061 # 1189 # 2628 # 6930 @ 3226
Example Output: -18219

Example Input: 7174 # 4159 @ 5015 @ 5880 # 18 # 2225 @ 5023
Example Output:
16690