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: 2342 # 5338 @ 345 @ 9010 @ 5234 @ 9613

Output: 21206


Input: Consider Input: 9380 # 5155 # 480 # 6791 # 9548 @ 2674 # 821 @ 657

Output: -10084


Input: Consider Input: 8824 @ 5765 # 8403 # 2751 @ 5940 @ 3939


Output: 13314