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: 8238 @ 9817 # 2474 @ 3673 @ 9625 # 849 @ 1441

Output: 29471


Input: Consider Input: 4616 @ 2249 # 272 @ 618 # 4242 @ 6599 @ 8683 @ 1628 # 7090

Output: 12789


Input: Consider Input: 7202 # 7230 # 3695 @ 2434 @ 5934 @ 5439 @ 687 @ 2011


Output: 12782