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

Example Input: 3923 # 9826 # 9066 # 9343 # 4675 @ 4896 # 8019 @ 4615 # 3491
Example Output: -30986

Example Input: 1462 @ 9471 @ 4969 # 8023 # 8713 # 53 # 7258 @ 8667
Example Output:
522