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: 9551 @ 4169 # 3026 @ 616 # 5398 # 6695 # 5831 # 898 # 1255

Output: -8767


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

Output: 22412


Input: Consider Input: 6877 # 2401 @ 5902 @ 5848


Output: 16226