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: 7376 @ 9212 @ 1713 # 9993
Example Output: 8308

Example Input: 6853 # 3523 @ 1895 @ 6916 @ 2795 # 8802 # 3074 # 5622 @ 956
Example Output: -1606

Example Input: 7356 @ 6275 @ 6893 # 7009 # 4083 # 9395 @ 3781 # 5546 @ 8361
Example Output:
6633