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

Input: Consider Input: 8732 # 4760 @ 9372

Output: 13344

Input: Consider Input: 837 @ 118 @ 1503 # 3288 @ 6669 # 1394

Output: 4445

Input: Consider Input: 3903 # 9197 @ 8948 @ 5587 # 7846 # 4139
Output: -2744