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: 1062 @ 9466 @ 4653

Output: 15181


Input: Consider Input: 8441 @ 2924 # 9024 @ 6661 @ 7034 # 4821 # 4921

Output: 6294


Input: Consider Input: 1998 @ 3289 @ 5132 @ 8801


Output: 19220