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: 1837 @ 4842 # 1682 @ 5953

Output: 10950


Input: Consider Input: 2019 @ 3095 @ 5800

Output: 10914


Input: Consider Input: 5579 # 8073 # 8385 # 3317 @ 5484 @ 2569 # 4213


Output: -10356