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: 2569 # 3660 # 2044 @ 3564 # 7082 @ 4306 @ 254 @ 4425

Output: 2332

Input: Consider Input: 4324 # 426 # 9171 # 980 @ 9454 @ 9720 # 7367 # 9266 # 1237

Output: -4949

Input: Consider Input: 4106 @ 5095 @ 1058 # 3531 @ 9299 # 7356
Output: 8671