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: 808 # 5395 # 5187 @ 8140 @ 2751 @ 1624 # 2083 @ 6224 # 8604

Output: -1722


Input: Consider Input: 5569 # 5161 @ 9240 @ 391 @ 2756 # 7345 @ 4533

Output: 9983


Input: Consider Input: 1040 # 6682 @ 4286 # 1132 # 705 @ 4048 # 9240


Output: -8385