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: 3337 @ 9906 @ 9733 # 853 @ 5075 # 2064 @ 9450 # 3886

Output: 30698


Input: Consider Input: 1516 # 4681 # 225 # 3393 @ 1212 @ 367

Output: -5204


Input: Consider Input: 4331 # 7606 @ 9043 @ 9912 @ 1560 # 5858 @ 703


Output: 12085