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: 7106 # 9524 # 2673 # 4668 @ 6755 # 5653 # 2688 # 9360

Output: -20705


Input: Consider Input: 2307 # 9363 @ 4926 @ 5635

Output: 3505


Input: Consider Input: 5036 @ 7988 @ 5098 # 2912 @ 7110 @ 3544


Output: 25864