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: 9012 # 7958 # 951 # 3753 @ 5601 @ 8942 @ 2251 @ 4526

Output: 17670


Input: Consider Input: 2030 # 4671 # 6277 @ 7403 @ 211 @ 1842 # 9247

Output: -8709


Input: Consider Input: 2867 @ 6098 @ 8444 # 8577


Output: 8832