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: 9852 # 24 # 2468 @ 5798 @ 6384

Output: 19542


Input: Consider Input: 877 # 7761 # 7154 # 4993 # 2712

Output: -21743


Input: Consider Input: 8516 # 6887 @ 1903 # 1036


Output: 2496