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: 9817 @ 5042 # 1724 @ 799 @ 685
Example Output: 14619

Example Input: 6796 # 5118 @ 4061 @ 2573 # 7960 @ 5889 # 7812 @ 3174
Example Output: 1603

Example Input: 7806 @ 8117 # 4213
Example Output:
11710