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: 4428 # 2569 @ 338 # 967 @ 2206

Output: 3436


Input: Consider Input: 5098 # 2466 @ 6132 # 7008 @ 2142 # 5650 @ 531

Output: -1221


Input: Consider Input: 5496 # 4109 # 7198 @ 3365 # 9165


Output: -11611