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: 1864 @ 8830 # 8139 # 5532 @ 9493 # 2897 # 3370 @ 2698 @ 3260
Example Output: 6207

Example Input: 1982 # 4772 # 2392 # 1023 # 9072 @ 1042 @ 2606 # 2557 @ 1145
Example Output: -13041

Example Input: 8294 @ 6661 @ 4555 @ 6171
Example Output:
25681