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: 735 @ 7682 # 2492 # 7149 @ 7531 @ 4967 @ 3646 @ 6439
Example Output: 21359

Example Input: 7397 # 490 @ 6567 @ 9098 @ 75 @ 6182
Example Output:
28829