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: 8451 # 7523 @ 454 @ 459 @ 182 @ 6187 # 2835
Example Output: 5375

Example Input: 5263 @ 8483 # 8668 @ 4802 # 7388 @ 2501 @ 3137 # 8399
Example Output: -269

Example Input: 9036 @ 5610 # 3772 @ 1313 # 4773 @ 8533 # 2332 @ 4095 # 9999
Example Output:
7711