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

Output: -10084


Input: Consider Input: 6472 # 6421 @ 7649 @ 4005

Output: 11705


Input: Consider Input: 9069 # 6417 # 7758 # 1235 # 7834 # 6749 # 4625 @ 917 # 4277


Output: -28909