Definition: 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
Input: 1939 @ 418 # 2860 # 3900 # 9119 @ 5354 # 6145 @ 8365 # 8721
Output:
-14669