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: 5460 # 8572 @ 5548

Output: 2436


Input: Consider Input: 4238 # 9059 # 3579 @ 2750 # 6861 # 5756 @ 9729

Output: -8538


Input: Consider Input: 4203 # 2197 # 5419 # 9369 @ 4447 # 2386 # 94


Output: -10815