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: 3765 @ 8333 @ 5726

Output: 17824


Input: Consider Input: 5038 @ 8417 @ 7931 @ 7414 @ 5627 # 6512 # 5503

Output: 22412


Input: Consider Input: 2349 # 9730 # 8231 @ 6983 @ 9097 @ 6965 # 2760


Output: 4673