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: 7542 @ 5447 # 1409 # 4760 # 6595
Example Output: 225

Example Input: 3276 # 8656 # 2580 @ 7528 @ 344 @ 6066 # 9323 # 6974 # 6635
Example Output: -16954

Example Input: 5571 @ 5729 # 6405 # 526 # 1330
Example Output:
3039