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: 6729 # 1204 # 5514 # 8079
Example Output: -8068

Example Input: 9913 # 5573 @ 4921 # 723 # 9487 # 754 # 1667 @ 5543 @ 6626
Example Output: 8799

Example Input: 5403 @ 8056 # 2287 # 2787 @ 7648 # 1240 @ 5048 @ 2246 @ 8974
Example Output:
31061

