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: Consider Input: 6557 @ 9368 # 307 @ 2982 # 8398 # 9241 # 4697 # 6790

Output: -10526


Input: Consider Input: 523 # 5860 # 778

Output: -6115


Input: Consider Input: 9964 @ 5009 # 6772 @ 8761 @ 2075 @ 6292 @ 4157 @ 5194


Output: 34680