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: 4494 # 3982 # 3562 @ 341 @ 5494 # 3299 # 7182 # 8494

Output: -16190


Input: Consider Input: 1811 @ 1950 @ 4025 # 7077 # 9566 @ 8618 @ 6520 # 2729


Output: 3552